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Finding the Fourth Proportional to 117,158.60, 161,678.84 and 63,443.61

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Solution

The fourth proportional to 117,158.60, 161,678.84 and 63,443.61 is: 87,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,158.60 : 161,678.84 = 63,443.61 : x
  2. Step 2: Convert to fraction form
    117,158.60/161,678.84 = 63,443.61/x
  3. Step 3: Cross multiply
    117,158.60x = 161,678.84 × 63,443.61
  4. Step 4: Simplify right side
    117,158.60x = 10,257,488,952.99
  5. Step 5: Solve for x
    x = 10,257,488,952.99/117,158.60
  6. Step 6: Final answer
    x = 87,552.17

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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.