Home / 130,521.38-180,120.11-73,932.75

Finding the Fourth Proportional to 130,521.38, 180,120.11 and 73,932.75

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Solution

The fourth proportional to 130,521.38, 180,120.11 and 73,932.75 is: 102,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,521.38 : 180,120.11 = 73,932.75 : x
  2. Step 2: Convert to fraction form
    130,521.38/180,120.11 = 73,932.75/x
  3. Step 3: Cross multiply
    130,521.38x = 180,120.11 × 73,932.75
  4. Step 4: Simplify right side
    130,521.38x = 13,316,774,692.94
  5. Step 5: Solve for x
    x = 13,316,774,692.94/130,521.38
  6. Step 6: Final answer
    x = 102,027.54

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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.