Home / 109,736.16-151,433.28-61,987.92

Finding the Fourth Proportional to 109,736.16, 151,433.28 and 61,987.92

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Solution

The fourth proportional to 109,736.16, 151,433.28 and 61,987.92 is: 85,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,736.16 : 151,433.28 = 61,987.92 : x
  2. Step 2: Convert to fraction form
    109,736.16/151,433.28 = 61,987.92/x
  3. Step 3: Cross multiply
    109,736.16x = 151,433.28 × 61,987.92
  4. Step 4: Simplify right side
    109,736.16x = 9,387,034,045.98
  5. Step 5: Solve for x
    x = 9,387,034,045.98/109,736.16
  6. Step 6: Final answer
    x = 85,541.85

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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.