Home / 121,112,125.64-181,402,419.23-100,124,701.36

Finding the Fourth Proportional to 121,112,125.64, 181,402,419.23 and 100,124,701.36

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Solution

The fourth proportional to 121,112,125.64, 181,402,419.23 and 100,124,701.36 is: 149,967,337.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,112,125.64 : 181,402,419.23 = 100,124,701.36 : x
  2. Step 2: Convert to fraction form
    121,112,125.64/181,402,419.23 = 100,124,701.36/x
  3. Step 3: Cross multiply
    121,112,125.64x = 181,402,419.23 × 100,124,701.36
  4. Step 4: Simplify right side
    121,112,125.64x = 18,162,863,050,806,608
  5. Step 5: Solve for x
    x = 18,162,863,050,806,608/121,112,125.64
  6. Step 6: Final answer
    x = 149,967,337.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.