Home / 109,143.62-150,610.08-61,387.74

Finding the Fourth Proportional to 109,143.62, 150,610.08 and 61,387.74

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Solution

The fourth proportional to 109,143.62, 150,610.08 and 61,387.74 is: 84,710.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,143.62 : 150,610.08 = 61,387.74 : x
  2. Step 2: Convert to fraction form
    109,143.62/150,610.08 = 61,387.74/x
  3. Step 3: Cross multiply
    109,143.62x = 150,610.08 × 61,387.74
  4. Step 4: Simplify right side
    109,143.62x = 9,245,612,662.62
  5. Step 5: Solve for x
    x = 9,245,612,662.62/109,143.62
  6. Step 6: Final answer
    x = 84,710.52

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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.