Home / 215,531.83-297,443.17-120,038.55

Finding the Fourth Proportional to 215,531.83, 297,443.17 and 120,038.55

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Solution

The fourth proportional to 215,531.83, 297,443.17 and 120,038.55 is: 165,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,531.83 : 297,443.17 = 120,038.55 : x
  2. Step 2: Convert to fraction form
    215,531.83/297,443.17 = 120,038.55/x
  3. Step 3: Cross multiply
    215,531.83x = 297,443.17 × 120,038.55
  4. Step 4: Simplify right side
    215,531.83x = 35,704,646,834.20
  5. Step 5: Solve for x
    x = 35,704,646,834.20/215,531.83
  6. Step 6: Final answer
    x = 165,658.35

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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.