Home / 109,509.12-151,124.76-61,753.14

Finding the Fourth Proportional to 109,509.12, 151,124.76 and 61,753.14

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Solution

The fourth proportional to 109,509.12, 151,124.76 and 61,753.14 is: 85,220.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509.12 : 151,124.76 = 61,753.14 : x
  2. Step 2: Convert to fraction form
    109,509.12/151,124.76 = 61,753.14/x
  3. Step 3: Cross multiply
    109,509.12x = 151,124.76 × 61,753.14
  4. Step 4: Simplify right side
    109,509.12x = 9,332,428,461.75
  5. Step 5: Solve for x
    x = 9,332,428,461.75/109,509.12
  6. Step 6: Final answer
    x = 85,220.56

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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.