Home / 287,735.27-431,666.14-88,071.06

Finding the Fourth Proportional to 287,735.27, 431,666.14 and 88,071.06

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Solution

The fourth proportional to 287,735.27, 431,666.14 and 88,071.06 is: 132,125.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,735.27 : 431,666.14 = 88,071.06 : x
  2. Step 2: Convert to fraction form
    287,735.27/431,666.14 = 88,071.06/x
  3. Step 3: Cross multiply
    287,735.27x = 431,666.14 × 88,071.06
  4. Step 4: Simplify right side
    287,735.27x = 38,017,294,295.73
  5. Step 5: Solve for x
    x = 38,017,294,295.73/287,735.27
  6. Step 6: Final answer
    x = 132,125.94

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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.