Home / 130,954.13-180,716.72-71,338.13

Finding the Fourth Proportional to 130,954.13, 180,716.72 and 71,338.13

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Solution

The fourth proportional to 130,954.13, 180,716.72 and 71,338.13 is: 98,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,954.13 : 180,716.72 = 71,338.13 : x
  2. Step 2: Convert to fraction form
    130,954.13/180,716.72 = 71,338.13/x
  3. Step 3: Cross multiply
    130,954.13x = 180,716.72 × 71,338.13
  4. Step 4: Simplify right side
    130,954.13x = 12,891,991,604.26
  5. Step 5: Solve for x
    x = 12,891,991,604.26/130,954.13
  6. Step 6: Final answer
    x = 98,446.62

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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.