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Finding the Fourth Proportional to 117,141.30, 161,652.02 and 65,458.84

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Solution

The fourth proportional to 117,141.30, 161,652.02 and 65,458.84 is: 90,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,141.30 : 161,652.02 = 65,458.84 : x
  2. Step 2: Convert to fraction form
    117,141.30/161,652.02 = 65,458.84/x
  3. Step 3: Cross multiply
    117,141.30x = 161,652.02 × 65,458.84
  4. Step 4: Simplify right side
    117,141.30x = 10,581,553,712.86
  5. Step 5: Solve for x
    x = 10,581,553,712.86/117,141.30
  6. Step 6: Final answer
    x = 90,331.54

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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.