Home / 120,156.48-180,123.24-57,006.24

Finding the Fourth Proportional to 120,156.48, 180,123.24 and 57,006.24

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Solution

The fourth proportional to 120,156.48, 180,123.24 and 57,006.24 is: 85,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,156.48 : 180,123.24 = 57,006.24 : x
  2. Step 2: Convert to fraction form
    120,156.48/180,123.24 = 57,006.24/x
  3. Step 3: Cross multiply
    120,156.48x = 180,123.24 × 57,006.24
  4. Step 4: Simplify right side
    120,156.48x = 10,268,148,649.02
  5. Step 5: Solve for x
    x = 10,268,148,649.02/120,156.48
  6. Step 6: Final answer
    x = 85,456.47

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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.