Home / 113,989.17-157,313.19-63,000.80

Finding the Fourth Proportional to 113,989.17, 157,313.19 and 63,000.80

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Solution

The fourth proportional to 113,989.17, 157,313.19 and 63,000.80 is: 86,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,989.17 : 157,313.19 = 63,000.80 : x
  2. Step 2: Convert to fraction form
    113,989.17/157,313.19 = 63,000.80/x
  3. Step 3: Cross multiply
    113,989.17x = 157,313.19 × 63,000.80
  4. Step 4: Simplify right side
    113,989.17x = 9,910,856,660.96
  5. Step 5: Solve for x
    x = 9,910,856,660.96/113,989.17
  6. Step 6: Final answer
    x = 86,945.60

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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.