Home / 125,434.92-188,205.04-78,089.64

Finding the Fourth Proportional to 125,434.92, 188,205.04 and 78,089.64

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Solution

The fourth proportional to 125,434.92, 188,205.04 and 78,089.64 is: 117,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,434.92 : 188,205.04 = 78,089.64 : x
  2. Step 2: Convert to fraction form
    125,434.92/188,205.04 = 78,089.64/x
  3. Step 3: Cross multiply
    125,434.92x = 188,205.04 × 78,089.64
  4. Step 4: Simplify right side
    125,434.92x = 14,696,863,819.79
  5. Step 5: Solve for x
    x = 14,696,863,819.79/125,434.92
  6. Step 6: Final answer
    x = 117,167.24

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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.