Home / 115,756.20-173,691.90-45,637.80

Finding the Fourth Proportional to 115,756.20, 173,691.90 and 45,637.80

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Solution

The fourth proportional to 115,756.20, 173,691.90 and 45,637.80 is: 68,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,756.20 : 173,691.90 = 45,637.80 : x
  2. Step 2: Convert to fraction form
    115,756.20/173,691.90 = 45,637.80/x
  3. Step 3: Cross multiply
    115,756.20x = 173,691.90 × 45,637.80
  4. Step 4: Simplify right side
    115,756.20x = 7,926,916,193.82
  5. Step 5: Solve for x
    x = 7,926,916,193.82/115,756.20
  6. Step 6: Final answer
    x = 68,479.41

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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.