Home / 117,165.30-175,711.64-42,275.72

Finding the Fourth Proportional to 117,165.30, 175,711.64 and 42,275.72

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Solution

The fourth proportional to 117,165.30, 175,711.64 and 42,275.72 is: 63,400.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,165.30 : 175,711.64 = 42,275.72 : x
  2. Step 2: Convert to fraction form
    117,165.30/175,711.64 = 42,275.72/x
  3. Step 3: Cross multiply
    117,165.30x = 175,711.64 × 42,275.72
  4. Step 4: Simplify right side
    117,165.30x = 7,428,335,003.44
  5. Step 5: Solve for x
    x = 7,428,335,003.44/117,165.30
  6. Step 6: Final answer
    x = 63,400.47

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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.