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Finding the Fourth Proportional to 93,425.40, 140,138.10 and 77,022.90

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Solution

The fourth proportional to 93,425.40, 140,138.10 and 77,022.90 is: 115,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,425.40 : 140,138.10 = 77,022.90 : x
  2. Step 2: Convert to fraction form
    93,425.40/140,138.10 = 77,022.90/x
  3. Step 3: Cross multiply
    93,425.40x = 140,138.10 × 77,022.90
  4. Step 4: Simplify right side
    93,425.40x = 10,793,842,862.49
  5. Step 5: Solve for x
    x = 10,793,842,862.49/93,425.40
  6. Step 6: Final answer
    x = 115,534.35

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1.5x scale

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.