Home / 312,732.18-469,098.38-76,073.40

Finding the Fourth Proportional to 312,732.18, 469,098.38 and 76,073.40

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Solution

The fourth proportional to 312,732.18, 469,098.38 and 76,073.40 is: 114,110.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,732.18 : 469,098.38 = 76,073.40 : x
  2. Step 2: Convert to fraction form
    312,732.18/469,098.38 = 76,073.40/x
  3. Step 3: Cross multiply
    312,732.18x = 469,098.38 × 76,073.40
  4. Step 4: Simplify right side
    312,732.18x = 35,685,908,701.09
  5. Step 5: Solve for x
    x = 35,685,908,701.09/312,732.18
  6. Step 6: Final answer
    x = 114,110.13

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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.