Home / 103,638.60-155,549.03-61,465.95

Finding the Fourth Proportional to 103,638.60, 155,549.03 and 61,465.95

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Solution

The fourth proportional to 103,638.60, 155,549.03 and 61,465.95 is: 92,252.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,638.60 : 155,549.03 = 61,465.95 : x
  2. Step 2: Convert to fraction form
    103,638.60/155,549.03 = 61,465.95/x
  3. Step 3: Cross multiply
    103,638.60x = 155,549.03 × 61,465.95
  4. Step 4: Simplify right side
    103,638.60x = 9,560,968,593.20
  5. Step 5: Solve for x
    x = 9,560,968,593.20/103,638.60
  6. Step 6: Final answer
    x = 92,252.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.