Home / 130,664.68-180,314.02-76,227.28

Finding the Fourth Proportional to 130,664.68, 180,314.02 and 76,227.28

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Solution

The fourth proportional to 130,664.68, 180,314.02 and 76,227.28 is: 105,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,664.68 : 180,314.02 = 76,227.28 : x
  2. Step 2: Convert to fraction form
    130,664.68/180,314.02 = 76,227.28/x
  3. Step 3: Cross multiply
    130,664.68x = 180,314.02 × 76,227.28
  4. Step 4: Simplify right side
    130,664.68x = 13,744,847,290.47
  5. Step 5: Solve for x
    x = 13,744,847,290.47/130,664.68
  6. Step 6: Final answer
    x = 105,191.76

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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.