Home / 120,586.15-180,888.27-40,624.57

Finding the Fourth Proportional to 120,586.15, 180,888.27 and 40,624.57

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Solution

The fourth proportional to 120,586.15, 180,888.27 and 40,624.57 is: 60,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.15 : 180,888.27 = 40,624.57 : x
  2. Step 2: Convert to fraction form
    120,586.15/180,888.27 = 40,624.57/x
  3. Step 3: Cross multiply
    120,586.15x = 180,888.27 × 40,624.57
  4. Step 4: Simplify right side
    120,586.15x = 7,348,508,186.79
  5. Step 5: Solve for x
    x = 7,348,508,186.79/120,586.15
  6. Step 6: Final answer
    x = 60,939.90

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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.