Home / 144,078.11-216,269.34-80,952.18

Finding the Fourth Proportional to 144,078.11, 216,269.34 and 80,952.18

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Solution

The fourth proportional to 144,078.11, 216,269.34 and 80,952.18 is: 121,513.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,078.11 : 216,269.34 = 80,952.18 : x
  2. Step 2: Convert to fraction form
    144,078.11/216,269.34 = 80,952.18/x
  3. Step 3: Cross multiply
    144,078.11x = 216,269.34 × 80,952.18
  4. Step 4: Simplify right side
    144,078.11x = 17,507,473,054.05
  5. Step 5: Solve for x
    x = 17,507,473,054.05/144,078.11
  6. Step 6: Final answer
    x = 121,513.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.