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Finding the Fourth Proportional to 123,602.74, 170,569.82 and 69,885.70

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Solution

The fourth proportional to 123,602.74, 170,569.82 and 69,885.70 is: 96,441.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,602.74 : 170,569.82 = 69,885.70 : x
  2. Step 2: Convert to fraction form
    123,602.74/170,569.82 = 69,885.70/x
  3. Step 3: Cross multiply
    123,602.74x = 170,569.82 × 69,885.70
  4. Step 4: Simplify right side
    123,602.74x = 11,920,391,269.57
  5. Step 5: Solve for x
    x = 11,920,391,269.57/123,602.74
  6. Step 6: Final answer
    x = 96,441.16

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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.