Home / 142,979.40-214,470.66-43,140.48

Finding the Fourth Proportional to 142,979.40, 214,470.66 and 43,140.48

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Solution

The fourth proportional to 142,979.40, 214,470.66 and 43,140.48 is: 64,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,979.40 : 214,470.66 = 43,140.48 : x
  2. Step 2: Convert to fraction form
    142,979.40/214,470.66 = 43,140.48/x
  3. Step 3: Cross multiply
    142,979.40x = 214,470.66 × 43,140.48
  4. Step 4: Simplify right side
    142,979.40x = 9,252,367,218.32
  5. Step 5: Solve for x
    x = 9,252,367,218.32/142,979.40
  6. Step 6: Final answer
    x = 64,711.19

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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.