Home / 287,734.40-431,664.82-88,070.18

Finding the Fourth Proportional to 287,734.40, 431,664.82 and 88,070.18

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Solution

The fourth proportional to 287,734.40, 431,664.82 and 88,070.18 is: 132,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,734.40 : 431,664.82 = 88,070.18 : x
  2. Step 2: Convert to fraction form
    287,734.40/431,664.82 = 88,070.18/x
  3. Step 3: Cross multiply
    287,734.40x = 431,664.82 × 88,070.18
  4. Step 4: Simplify right side
    287,734.40x = 38,016,798,397.07
  5. Step 5: Solve for x
    x = 38,016,798,397.07/287,734.40
  6. Step 6: Final answer
    x = 132,124.62

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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.