Home / 121,427.11-182,030.39-42,498.28

Finding the Fourth Proportional to 121,427.11, 182,030.39 and 42,498.28

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Solution

The fourth proportional to 121,427.11, 182,030.39 and 42,498.28 is: 63,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,427.11 : 182,030.39 = 42,498.28 : x
  2. Step 2: Convert to fraction form
    121,427.11/182,030.39 = 42,498.28/x
  3. Step 3: Cross multiply
    121,427.11x = 182,030.39 × 42,498.28
  4. Step 4: Simplify right side
    121,427.11x = 7,735,977,360.09
  5. Step 5: Solve for x
    x = 7,735,977,360.09/121,427.11
  6. Step 6: Final answer
    x = 63,708.82

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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.