Home / 109,131.60-150,600.96-61,384.92

Finding the Fourth Proportional to 109,131.60, 150,600.96 and 61,384.92

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Solution

The fourth proportional to 109,131.60, 150,600.96 and 61,384.92 is: 84,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,131.60 : 150,600.96 = 61,384.92 : x
  2. Step 2: Convert to fraction form
    109,131.60/150,600.96 = 61,384.92/x
  3. Step 3: Cross multiply
    109,131.60x = 150,600.96 × 61,384.92
  4. Step 4: Simplify right side
    109,131.60x = 9,244,627,881.52
  5. Step 5: Solve for x
    x = 9,244,627,881.52/109,131.60
  6. Step 6: Final answer
    x = 84,710.83

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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.