Home / 176,607.66-243,711.16-100,131.90

Finding the Fourth Proportional to 176,607.66, 243,711.16 and 100,131.90

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Solution

The fourth proportional to 176,607.66, 243,711.16 and 100,131.90 is: 138,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,607.66 : 243,711.16 = 100,131.90 : x
  2. Step 2: Convert to fraction form
    176,607.66/243,711.16 = 100,131.90/x
  3. Step 3: Cross multiply
    176,607.66x = 243,711.16 × 100,131.90
  4. Step 4: Simplify right side
    176,607.66x = 24,403,262,271.87
  5. Step 5: Solve for x
    x = 24,403,262,271.87/176,607.66
  6. Step 6: Final answer
    x = 138,177.82

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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.