Home / 117,753.72-162,495.18-66,769.89

Finding the Fourth Proportional to 117,753.72, 162,495.18 and 66,769.89

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Solution

The fourth proportional to 117,753.72, 162,495.18 and 66,769.89 is: 92,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,753.72 : 162,495.18 = 66,769.89 : x
  2. Step 2: Convert to fraction form
    117,753.72/162,495.18 = 66,769.89/x
  3. Step 3: Cross multiply
    117,753.72x = 162,495.18 × 66,769.89
  4. Step 4: Simplify right side
    117,753.72x = 10,849,785,294.13
  5. Step 5: Solve for x
    x = 10,849,785,294.13/117,753.72
  6. Step 6: Final answer
    x = 92,139.64

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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.