Home / 119,771.91-165,314.12-72,016.02

Finding the Fourth Proportional to 119,771.91, 165,314.12 and 72,016.02

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Solution

The fourth proportional to 119,771.91, 165,314.12 and 72,016.02 is: 99,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,771.91 : 165,314.12 = 72,016.02 : x
  2. Step 2: Convert to fraction form
    119,771.91/165,314.12 = 72,016.02/x
  3. Step 3: Cross multiply
    119,771.91x = 165,314.12 × 72,016.02
  4. Step 4: Simplify right side
    119,771.91x = 11,905,264,612.12
  5. Step 5: Solve for x
    x = 11,905,264,612.12/119,771.91
  6. Step 6: Final answer
    x = 99,399.47

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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.