Home / 120,037.72-180,036.04-49,898.20

Finding the Fourth Proportional to 120,037.72, 180,036.04 and 49,898.20

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Solution

The fourth proportional to 120,037.72, 180,036.04 and 49,898.20 is: 74,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,037.72 : 180,036.04 = 49,898.20 : x
  2. Step 2: Convert to fraction form
    120,037.72/180,036.04 = 49,898.20/x
  3. Step 3: Cross multiply
    120,037.72x = 180,036.04 × 49,898.20
  4. Step 4: Simplify right side
    120,037.72x = 8,983,474,331.13
  5. Step 5: Solve for x
    x = 8,983,474,331.13/120,037.72
  6. Step 6: Final answer
    x = 74,838.76

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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.