Home / 109,179.17-150,665.09-60,780.45

Finding the Fourth Proportional to 109,179.17, 150,665.09 and 60,780.45

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Solution

The fourth proportional to 109,179.17, 150,665.09 and 60,780.45 is: 83,875.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,179.17 : 150,665.09 = 60,780.45 : x
  2. Step 2: Convert to fraction form
    109,179.17/150,665.09 = 60,780.45/x
  3. Step 3: Cross multiply
    109,179.17x = 150,665.09 × 60,780.45
  4. Step 4: Simplify right side
    109,179.17x = 9,157,491,665.59
  5. Step 5: Solve for x
    x = 9,157,491,665.59/109,179.17
  6. Step 6: Final answer
    x = 83,875.82

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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.