Home / 215,531.61-297,442.80-120,038.30

Finding the Fourth Proportional to 215,531.61, 297,442.80 and 120,038.30

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Solution

The fourth proportional to 215,531.61, 297,442.80 and 120,038.30 is: 165,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,531.61 : 297,442.80 = 120,038.30 : x
  2. Step 2: Convert to fraction form
    215,531.61/297,442.80 = 120,038.30/x
  3. Step 3: Cross multiply
    215,531.61x = 297,442.80 × 120,038.30
  4. Step 4: Simplify right side
    215,531.61x = 35,704,526,572.03
  5. Step 5: Solve for x
    x = 35,704,526,572.03/215,531.61
  6. Step 6: Final answer
    x = 165,657.96

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1.5x scale

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.