Home / 142,945.83-197,288.87-79,304.13

Finding the Fourth Proportional to 142,945.83, 197,288.87 and 79,304.13

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Solution

The fourth proportional to 142,945.83, 197,288.87 and 79,304.13 is: 109,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,945.83 : 197,288.87 = 79,304.13 : x
  2. Step 2: Convert to fraction form
    142,945.83/197,288.87 = 79,304.13/x
  3. Step 3: Cross multiply
    142,945.83x = 197,288.87 × 79,304.13
  4. Step 4: Simplify right side
    142,945.83x = 15,645,821,797.51
  5. Step 5: Solve for x
    x = 15,645,821,797.51/142,945.83
  6. Step 6: Final answer
    x = 109,452.80

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1.5x scale

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.