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Finding the Fourth Proportional to 103,557.61, 154,580.41 and 88,860.97

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Solution

The fourth proportional to 103,557.61, 154,580.41 and 88,860.97 is: 132,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,557.61 : 154,580.41 = 88,860.97 : x
  2. Step 2: Convert to fraction form
    103,557.61/154,580.41 = 88,860.97/x
  3. Step 3: Cross multiply
    103,557.61x = 154,580.41 × 88,860.97
  4. Step 4: Simplify right side
    103,557.61x = 13,736,165,175.60
  5. Step 5: Solve for x
    x = 13,736,165,175.60/103,557.61
  6. Step 6: Final answer
    x = 132,642.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.