Home / 120,160.56-180,129.28-57,010.36

Finding the Fourth Proportional to 120,160.56, 180,129.28 and 57,010.36

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Solution

The fourth proportional to 120,160.56, 180,129.28 and 57,010.36 is: 85,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,160.56 : 180,129.28 = 57,010.36 : x
  2. Step 2: Convert to fraction form
    120,160.56/180,129.28 = 57,010.36/x
  3. Step 3: Cross multiply
    120,160.56x = 180,129.28 × 57,010.36
  4. Step 4: Simplify right side
    120,160.56x = 10,269,235,099.34
  5. Step 5: Solve for x
    x = 10,269,235,099.34/120,160.56
  6. Step 6: Final answer
    x = 85,462.61

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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.