Home / 130,936.79-180,687.96-80,034.77

Finding the Fourth Proportional to 130,936.79, 180,687.96 and 80,034.77

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Solution

The fourth proportional to 130,936.79, 180,687.96 and 80,034.77 is: 110,445.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,936.79 : 180,687.96 = 80,034.77 : x
  2. Step 2: Convert to fraction form
    130,936.79/180,687.96 = 80,034.77/x
  3. Step 3: Cross multiply
    130,936.79x = 180,687.96 × 80,034.77
  4. Step 4: Simplify right side
    130,936.79x = 14,461,318,416.93
  5. Step 5: Solve for x
    x = 14,461,318,416.93/130,936.79
  6. Step 6: Final answer
    x = 110,445.04

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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.