Home / 142,979.77-214,535.27-72,908.29

Finding the Fourth Proportional to 142,979.77, 214,535.27 and 72,908.29

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Solution

The fourth proportional to 142,979.77, 214,535.27 and 72,908.29 is: 109,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,979.77 : 214,535.27 = 72,908.29 : x
  2. Step 2: Convert to fraction form
    142,979.77/214,535.27 = 72,908.29/x
  3. Step 3: Cross multiply
    142,979.77x = 214,535.27 × 72,908.29
  4. Step 4: Simplify right side
    142,979.77x = 15,641,399,680.39
  5. Step 5: Solve for x
    x = 15,641,399,680.39/142,979.77
  6. Step 6: Final answer
    x = 109,395.89

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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.