Home / 125,815.14-173,590.41-87,531.69

Finding the Fourth Proportional to 125,815.14, 173,590.41 and 87,531.69

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Solution

The fourth proportional to 125,815.14, 173,590.41 and 87,531.69 is: 120,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,815.14 : 173,590.41 = 87,531.69 : x
  2. Step 2: Convert to fraction form
    125,815.14/173,590.41 = 87,531.69/x
  3. Step 3: Cross multiply
    125,815.14x = 173,590.41 × 87,531.69
  4. Step 4: Simplify right side
    125,815.14x = 15,194,661,955.09
  5. Step 5: Solve for x
    x = 15,194,661,955.09/125,815.14
  6. Step 6: Final answer
    x = 120,769.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.