Home / 103,436.30-155,154.45-92,282.60

Finding the Fourth Proportional to 103,436.30, 155,154.45 and 92,282.60

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Solution

The fourth proportional to 103,436.30, 155,154.45 and 92,282.60 is: 138,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,436.30 : 155,154.45 = 92,282.60 : x
  2. Step 2: Convert to fraction form
    103,436.30/155,154.45 = 92,282.60/x
  3. Step 3: Cross multiply
    103,436.30x = 155,154.45 × 92,282.60
  4. Step 4: Simplify right side
    103,436.30x = 14,318,056,047.57
  5. Step 5: Solve for x
    x = 14,318,056,047.57/103,436.30
  6. Step 6: Final answer
    x = 138,423.90

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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.