Home / 130,861.52-180,588.88-71,245.52

Finding the Fourth Proportional to 130,861.52, 180,588.88 and 71,245.52

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Solution

The fourth proportional to 130,861.52, 180,588.88 and 71,245.52 is: 98,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,861.52 : 180,588.88 = 71,245.52 : x
  2. Step 2: Convert to fraction form
    130,861.52/180,588.88 = 71,245.52/x
  3. Step 3: Cross multiply
    130,861.52x = 180,588.88 × 71,245.52
  4. Step 4: Simplify right side
    130,861.52x = 12,866,148,661.82
  5. Step 5: Solve for x
    x = 12,866,148,661.82/130,861.52
  6. Step 6: Final answer
    x = 98,318.81

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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.