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Finding the Fourth Proportional to 110,325.92, 165,488.87 and 77,110.86

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Solution

The fourth proportional to 110,325.92, 165,488.87 and 77,110.86 is: 115,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,325.92 : 165,488.87 = 77,110.86 : x
  2. Step 2: Convert to fraction form
    110,325.92/165,488.87 = 77,110.86/x
  3. Step 3: Cross multiply
    110,325.92x = 165,488.87 × 77,110.86
  4. Step 4: Simplify right side
    110,325.92x = 12,760,988,700.57
  5. Step 5: Solve for x
    x = 12,760,988,700.57/110,325.92
  6. Step 6: Final answer
    x = 115,666.28

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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.