Home / 99,115.04-136,892.27-65,274.80

Finding the Fourth Proportional to 99,115.04, 136,892.27 and 65,274.80

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Solution

The fourth proportional to 99,115.04, 136,892.27 and 65,274.80 is: 90,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,115.04 : 136,892.27 = 65,274.80 : x
  2. Step 2: Convert to fraction form
    99,115.04/136,892.27 = 65,274.80/x
  3. Step 3: Cross multiply
    99,115.04x = 136,892.27 × 65,274.80
  4. Step 4: Simplify right side
    99,115.04x = 8,935,615,024.52
  5. Step 5: Solve for x
    x = 8,935,615,024.52/99,115.04
  6. Step 6: Final answer
    x = 90,153.97

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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.