Home / 117,142.29-175,711.87-28,396.55

Finding the Fourth Proportional to 117,142.29, 175,711.87 and 28,396.55

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Solution

The fourth proportional to 117,142.29, 175,711.87 and 28,396.55 is: 42,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,142.29 : 175,711.87 = 28,396.55 : x
  2. Step 2: Convert to fraction form
    117,142.29/175,711.87 = 28,396.55/x
  3. Step 3: Cross multiply
    117,142.29x = 175,711.87 × 28,396.55
  4. Step 4: Simplify right side
    117,142.29x = 4,989,610,902.05
  5. Step 5: Solve for x
    x = 4,989,610,902.05/117,142.29
  6. Step 6: Final answer
    x = 42,594.45

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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.