Home / 125,799.30-173,568.69-87,515.87

Finding the Fourth Proportional to 125,799.30, 173,568.69 and 87,515.87

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Solution

The fourth proportional to 125,799.30, 173,568.69 and 87,515.87 is: 120,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,799.30 : 173,568.69 = 87,515.87 : x
  2. Step 2: Convert to fraction form
    125,799.30/173,568.69 = 87,515.87/x
  3. Step 3: Cross multiply
    125,799.30x = 173,568.69 × 87,515.87
  4. Step 4: Simplify right side
    125,799.30x = 15,190,014,042.27
  5. Step 5: Solve for x
    x = 15,190,014,042.27/125,799.30
  6. Step 6: Final answer
    x = 120,748.00

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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.