Home / 142,768.40-197,116.62-127,612.49

Finding the Fourth Proportional to 142,768.40, 197,116.62 and 127,612.49

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Solution

The fourth proportional to 142,768.40, 197,116.62 and 127,612.49 is: 176,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,768.40 : 197,116.62 = 127,612.49 : x
  2. Step 2: Convert to fraction form
    142,768.40/197,116.62 = 127,612.49/x
  3. Step 3: Cross multiply
    142,768.40x = 197,116.62 × 127,612.49
  4. Step 4: Simplify right side
    142,768.40x = 25,154,542,698.58
  5. Step 5: Solve for x
    x = 25,154,542,698.58/142,768.40
  6. Step 6: Final answer
    x = 176,191.25

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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.