Home / 115,337.40-173,135.70-89,158.20

Finding the Fourth Proportional to 115,337.40, 173,135.70 and 89,158.20

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Solution

The fourth proportional to 115,337.40, 173,135.70 and 89,158.20 is: 133,837.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,337.40 : 173,135.70 = 89,158.20 : x
  2. Step 2: Convert to fraction form
    115,337.40/173,135.70 = 89,158.20/x
  3. Step 3: Cross multiply
    115,337.40x = 173,135.70 × 89,158.20
  4. Step 4: Simplify right side
    115,337.40x = 15,436,467,367.74
  5. Step 5: Solve for x
    x = 15,436,467,367.74/115,337.40
  6. Step 6: Final answer
    x = 133,837.48

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1.5x scale

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.