Home / 130,936.32-180,687.04-80,034.28

Finding the Fourth Proportional to 130,936.32, 180,687.04 and 80,034.28

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Solution

The fourth proportional to 130,936.32, 180,687.04 and 80,034.28 is: 110,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,936.32 : 180,687.04 = 80,034.28 : x
  2. Step 2: Convert to fraction form
    130,936.32/180,687.04 = 80,034.28/x
  3. Step 3: Cross multiply
    130,936.32x = 180,687.04 × 80,034.28
  4. Step 4: Simplify right side
    130,936.32x = 14,461,156,499.93
  5. Step 5: Solve for x
    x = 14,461,156,499.93/130,936.32
  6. Step 6: Final answer
    x = 110,444.20

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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.