Home / 109,440.56-151,008.59-61,693.90

Finding the Fourth Proportional to 109,440.56, 151,008.59 and 61,693.90

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Solution

The fourth proportional to 109,440.56, 151,008.59 and 61,693.90 is: 85,126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,440.56 : 151,008.59 = 61,693.90 : x
  2. Step 2: Convert to fraction form
    109,440.56/151,008.59 = 61,693.90/x
  3. Step 3: Cross multiply
    109,440.56x = 151,008.59 × 61,693.90
  4. Step 4: Simplify right side
    109,440.56x = 9,316,309,389.98
  5. Step 5: Solve for x
    x = 9,316,309,389.98/109,440.56
  6. Step 6: Final answer
    x = 85,126.66

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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.