Home / 117,140.29-175,708.87-28,394.55

Finding the Fourth Proportional to 117,140.29, 175,708.87 and 28,394.55

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Solution

The fourth proportional to 117,140.29, 175,708.87 and 28,394.55 is: 42,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,140.29 : 175,708.87 = 28,394.55 : x
  2. Step 2: Convert to fraction form
    117,140.29/175,708.87 = 28,394.55/x
  3. Step 3: Cross multiply
    117,140.29x = 175,708.87 × 28,394.55
  4. Step 4: Simplify right side
    117,140.29x = 4,989,174,223.67
  5. Step 5: Solve for x
    x = 4,989,174,223.67/117,140.29
  6. Step 6: Final answer
    x = 42,591.45

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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.