Home / 113,890.75-157,178.96-63,599.47

Finding the Fourth Proportional to 113,890.75, 157,178.96 and 63,599.47

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Solution

The fourth proportional to 113,890.75, 157,178.96 and 63,599.47 is: 87,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,890.75 : 157,178.96 = 63,599.47 : x
  2. Step 2: Convert to fraction form
    113,890.75/157,178.96 = 63,599.47/x
  3. Step 3: Cross multiply
    113,890.75x = 157,178.96 × 63,599.47
  4. Step 4: Simplify right side
    113,890.75x = 9,996,498,551.15
  5. Step 5: Solve for x
    x = 9,996,498,551.15/113,890.75
  6. Step 6: Final answer
    x = 87,772.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.