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Finding the Fourth Proportional to 95,320.80, 142,808.40 and 77,695.20

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Solution

The fourth proportional to 95,320.80, 142,808.40 and 77,695.20 is: 116,401.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,320.80 : 142,808.40 = 77,695.20 : x
  2. Step 2: Convert to fraction form
    95,320.80/142,808.40 = 77,695.20/x
  3. Step 3: Cross multiply
    95,320.80x = 142,808.40 × 77,695.20
  4. Step 4: Simplify right side
    95,320.80x = 11,095,527,199.68
  5. Step 5: Solve for x
    x = 11,095,527,199.68/95,320.80
  6. Step 6: Final answer
    x = 116,401.95

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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.