Home / 83,518.16-115,188.10-73,425.20

Finding the Fourth Proportional to 83,518.16, 115,188.10 and 73,425.20

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Solution

The fourth proportional to 83,518.16, 115,188.10 and 73,425.20 is: 101,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,518.16 : 115,188.10 = 73,425.20 : x
  2. Step 2: Convert to fraction form
    83,518.16/115,188.10 = 73,425.20/x
  3. Step 3: Cross multiply
    83,518.16x = 115,188.10 × 73,425.20
  4. Step 4: Simplify right side
    83,518.16x = 8,457,709,280.12
  5. Step 5: Solve for x
    x = 8,457,709,280.12/83,518.16
  6. Step 6: Final answer
    x = 101,267.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.