Home / 297,123.26-445,641.05-86,704.70

Finding the Fourth Proportional to 297,123.26, 445,641.05 and 86,704.70

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Solution

The fourth proportional to 297,123.26, 445,641.05 and 86,704.70 is: 130,044.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,123.26 : 445,641.05 = 86,704.70 : x
  2. Step 2: Convert to fraction form
    297,123.26/445,641.05 = 86,704.70/x
  3. Step 3: Cross multiply
    297,123.26x = 445,641.05 × 86,704.70
  4. Step 4: Simplify right side
    297,123.26x = 38,639,173,547.94
  5. Step 5: Solve for x
    x = 38,639,173,547.94/297,123.26
  6. Step 6: Final answer
    x = 130,044.26

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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.