Home / 109,665.90-164,385.45-59,640.30

Finding the Fourth Proportional to 109,665.90, 164,385.45 and 59,640.30

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Solution

The fourth proportional to 109,665.90, 164,385.45 and 59,640.30 is: 89,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,665.90 : 164,385.45 = 59,640.30 : x
  2. Step 2: Convert to fraction form
    109,665.90/164,385.45 = 59,640.30/x
  3. Step 3: Cross multiply
    109,665.90x = 164,385.45 × 59,640.30
  4. Step 4: Simplify right side
    109,665.90x = 9,803,997,553.64
  5. Step 5: Solve for x
    x = 9,803,997,553.64/109,665.90
  6. Step 6: Final answer
    x = 89,398.78

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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.