Home / 113,632.23-156,720.46-99,990.82

Finding the Fourth Proportional to 113,632.23, 156,720.46 and 99,990.82

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Solution

The fourth proportional to 113,632.23, 156,720.46 and 99,990.82 is: 137,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,632.23 : 156,720.46 = 99,990.82 : x
  2. Step 2: Convert to fraction form
    113,632.23/156,720.46 = 99,990.82/x
  3. Step 3: Cross multiply
    113,632.23x = 156,720.46 × 99,990.82
  4. Step 4: Simplify right side
    113,632.23x = 15,670,607,306.18
  5. Step 5: Solve for x
    x = 15,670,607,306.18/113,632.23
  6. Step 6: Final answer
    x = 137,906.36

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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.