Home / 130,861.51-180,588.92-73,500.92

Finding the Fourth Proportional to 130,861.51, 180,588.92 and 73,500.92

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Solution

The fourth proportional to 130,861.51, 180,588.92 and 73,500.92 is: 101,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,861.51 : 180,588.92 = 73,500.92 : x
  2. Step 2: Convert to fraction form
    130,861.51/180,588.92 = 73,500.92/x
  3. Step 3: Cross multiply
    130,861.51x = 180,588.92 × 73,500.92
  4. Step 4: Simplify right side
    130,861.51x = 13,273,451,761.81
  5. Step 5: Solve for x
    x = 13,273,451,761.81/130,861.51
  6. Step 6: Final answer
    x = 101,431.29

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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.