Home / 119,902.64-165,364.02-72,147.06

Finding the Fourth Proportional to 119,902.64, 165,364.02 and 72,147.06

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Solution

The fourth proportional to 119,902.64, 165,364.02 and 72,147.06 is: 99,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,902.64 : 165,364.02 = 72,147.06 : x
  2. Step 2: Convert to fraction form
    119,902.64/165,364.02 = 72,147.06/x
  3. Step 3: Cross multiply
    119,902.64x = 165,364.02 × 72,147.06
  4. Step 4: Simplify right side
    119,902.64x = 11,930,527,872.78
  5. Step 5: Solve for x
    x = 11,930,527,872.78/119,902.64
  6. Step 6: Final answer
    x = 99,501.80

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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.