Home / 130,687.68-180,346.56-73,328.04

Finding the Fourth Proportional to 130,687.68, 180,346.56 and 73,328.04

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Solution

The fourth proportional to 130,687.68, 180,346.56 and 73,328.04 is: 101,191.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,687.68 : 180,346.56 = 73,328.04 : x
  2. Step 2: Convert to fraction form
    130,687.68/180,346.56 = 73,328.04/x
  3. Step 3: Cross multiply
    130,687.68x = 180,346.56 × 73,328.04
  4. Step 4: Simplify right side
    130,687.68x = 13,224,459,765.54
  5. Step 5: Solve for x
    x = 13,224,459,765.54/130,687.68
  6. Step 6: Final answer
    x = 101,191.33

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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.