Home / 120,177.08-180,138.50-45,264.81

Finding the Fourth Proportional to 120,177.08, 180,138.50 and 45,264.81

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Solution

The fourth proportional to 120,177.08, 180,138.50 and 45,264.81 is: 67,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,177.08 : 180,138.50 = 45,264.81 : x
  2. Step 2: Convert to fraction form
    120,177.08/180,138.50 = 45,264.81/x
  3. Step 3: Cross multiply
    120,177.08x = 180,138.50 × 45,264.81
  4. Step 4: Simplify right side
    120,177.08x = 8,153,935,285.65
  5. Step 5: Solve for x
    x = 8,153,935,285.65/120,177.08
  6. Step 6: Final answer
    x = 67,849.34

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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.