Home / 120,156.30-180,234.45-57,948.30

Finding the Fourth Proportional to 120,156.30, 180,234.45 and 57,948.30

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Solution

The fourth proportional to 120,156.30, 180,234.45 and 57,948.30 is: 86,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,156.30 : 180,234.45 = 57,948.30 : x
  2. Step 2: Convert to fraction form
    120,156.30/180,234.45 = 57,948.30/x
  3. Step 3: Cross multiply
    120,156.30x = 180,234.45 × 57,948.30
  4. Step 4: Simplify right side
    120,156.30x = 10,444,279,978.94
  5. Step 5: Solve for x
    x = 10,444,279,978.94/120,156.30
  6. Step 6: Final answer
    x = 86,922.45

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1.5x scale

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.