Home / 106,931.88-147,553.04-61,624.72

Finding the Fourth Proportional to 106,931.88, 147,553.04 and 61,624.72

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Solution

The fourth proportional to 106,931.88, 147,553.04 and 61,624.72 is: 85,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,931.88 : 147,553.04 = 61,624.72 : x
  2. Step 2: Convert to fraction form
    106,931.88/147,553.04 = 61,624.72/x
  3. Step 3: Cross multiply
    106,931.88x = 147,553.04 × 61,624.72
  4. Step 4: Simplify right side
    106,931.88x = 9,092,914,775.15
  5. Step 5: Solve for x
    x = 9,092,914,775.15/106,931.88
  6. Step 6: Final answer
    x = 85,034.65

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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.