Home / 125,480.10-188,104.65-54,358.04

Finding the Fourth Proportional to 125,480.10, 188,104.65 and 54,358.04

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Solution

The fourth proportional to 125,480.10, 188,104.65 and 54,358.04 is: 81,487.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,480.10 : 188,104.65 = 54,358.04 : x
  2. Step 2: Convert to fraction form
    125,480.10/188,104.65 = 54,358.04/x
  3. Step 3: Cross multiply
    125,480.10x = 188,104.65 × 54,358.04
  4. Step 4: Simplify right side
    125,480.10x = 10,225,000,088.89
  5. Step 5: Solve for x
    x = 10,225,000,088.89/125,480.10
  6. Step 6: Final answer
    x = 81,487.03

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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.