Home / 83,425.30-124,989.99-69,302.50

Finding the Fourth Proportional to 83,425.30, 124,989.99 and 69,302.50

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Solution

The fourth proportional to 83,425.30, 124,989.99 and 69,302.50 is: 103,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,425.30 : 124,989.99 = 69,302.50 : x
  2. Step 2: Convert to fraction form
    83,425.30/124,989.99 = 69,302.50/x
  3. Step 3: Cross multiply
    83,425.30x = 124,989.99 × 69,302.50
  4. Step 4: Simplify right side
    83,425.30x = 8,662,118,781.98
  5. Step 5: Solve for x
    x = 8,662,118,781.98/83,425.30
  6. Step 6: Final answer
    x = 103,830.84

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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.