Home / 145,427.17-218,134.41-45,585.09

Finding the Fourth Proportional to 145,427.17, 218,134.41 and 45,585.09

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Solution

The fourth proportional to 145,427.17, 218,134.41 and 45,585.09 is: 68,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,427.17 : 218,134.41 = 45,585.09 : x
  2. Step 2: Convert to fraction form
    145,427.17/218,134.41 = 45,585.09/x
  3. Step 3: Cross multiply
    145,427.17x = 218,134.41 × 45,585.09
  4. Step 4: Simplify right side
    145,427.17x = 9,943,676,711.95
  5. Step 5: Solve for x
    x = 9,943,676,711.95/145,427.17
  6. Step 6: Final answer
    x = 68,375.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.