Home / 142,724.70-196,952.67-79,058.70

Finding the Fourth Proportional to 142,724.70, 196,952.67 and 79,058.70

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Solution

The fourth proportional to 142,724.70, 196,952.67 and 79,058.70 is: 109,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,724.70 : 196,952.67 = 79,058.70 : x
  2. Step 2: Convert to fraction form
    142,724.70/196,952.67 = 79,058.70/x
  3. Step 3: Cross multiply
    142,724.70x = 196,952.67 × 79,058.70
  4. Step 4: Simplify right side
    142,724.70x = 15,570,822,051.73
  5. Step 5: Solve for x
    x = 15,570,822,051.73/142,724.70
  6. Step 6: Final answer
    x = 109,096.90

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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.