Home / 117,432.16-162,045.68-69,677.28

Finding the Fourth Proportional to 117,432.16, 162,045.68 and 69,677.28

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Solution

The fourth proportional to 117,432.16, 162,045.68 and 69,677.28 is: 96,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,432.16 : 162,045.68 = 69,677.28 : x
  2. Step 2: Convert to fraction form
    117,432.16/162,045.68 = 69,677.28/x
  3. Step 3: Cross multiply
    117,432.16x = 162,045.68 × 69,677.28
  4. Step 4: Simplify right side
    117,432.16x = 11,290,902,218.15
  5. Step 5: Solve for x
    x = 11,290,902,218.15/117,432.16
  6. Step 6: Final answer
    x = 96,148.30

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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.