Home / 142,951.14-197,269.56-79,287.66

Finding the Fourth Proportional to 142,951.14, 197,269.56 and 79,287.66

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Solution

The fourth proportional to 142,951.14, 197,269.56 and 79,287.66 is: 109,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,951.14 : 197,269.56 = 79,287.66 : x
  2. Step 2: Convert to fraction form
    142,951.14/197,269.56 = 79,287.66/x
  3. Step 3: Cross multiply
    142,951.14x = 197,269.56 × 79,287.66
  4. Step 4: Simplify right side
    142,951.14x = 15,641,041,801.63
  5. Step 5: Solve for x
    x = 15,641,041,801.63/142,951.14
  6. Step 6: Final answer
    x = 109,415.30

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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.