Home / 112,148.67-154,765.06-61,161.50

Finding the Fourth Proportional to 112,148.67, 154,765.06 and 61,161.50

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Solution

The fourth proportional to 112,148.67, 154,765.06 and 61,161.50 is: 84,402.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,148.67 : 154,765.06 = 61,161.50 : x
  2. Step 2: Convert to fraction form
    112,148.67/154,765.06 = 61,161.50/x
  3. Step 3: Cross multiply
    112,148.67x = 154,765.06 × 61,161.50
  4. Step 4: Simplify right side
    112,148.67x = 9,465,663,217.19
  5. Step 5: Solve for x
    x = 9,465,663,217.19/112,148.67
  6. Step 6: Final answer
    x = 84,402.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.