Home / 142,781.40-197,134.56-127,625.49

Finding the Fourth Proportional to 142,781.40, 197,134.56 and 127,625.49

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Solution

The fourth proportional to 142,781.40, 197,134.56 and 127,625.49 is: 176,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,781.40 : 197,134.56 = 127,625.49 : x
  2. Step 2: Convert to fraction form
    142,781.40/197,134.56 = 127,625.49/x
  3. Step 3: Cross multiply
    142,781.40x = 197,134.56 × 127,625.49
  4. Step 4: Simplify right side
    142,781.40x = 25,159,394,815.93
  5. Step 5: Solve for x
    x = 25,159,394,815.93/142,781.40
  6. Step 6: Final answer
    x = 176,209.19

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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.