Home / 103,581.92-155,376.23-28,702.80

Finding the Fourth Proportional to 103,581.92, 155,376.23 and 28,702.80

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Solution

The fourth proportional to 103,581.92, 155,376.23 and 28,702.80 is: 43,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,581.92 : 155,376.23 = 28,702.80 : x
  2. Step 2: Convert to fraction form
    103,581.92/155,376.23 = 28,702.80/x
  3. Step 3: Cross multiply
    103,581.92x = 155,376.23 × 28,702.80
  4. Step 4: Simplify right side
    103,581.92x = 4,459,732,854.44
  5. Step 5: Solve for x
    x = 4,459,732,854.44/103,581.92
  6. Step 6: Final answer
    x = 43,055.13

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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.