Home / 142,749.66-196,958.07-89,060.70

Finding the Fourth Proportional to 142,749.66, 196,958.07 and 89,060.70

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Solution

The fourth proportional to 142,749.66, 196,958.07 and 89,060.70 is: 122,881.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,749.66 : 196,958.07 = 89,060.70 : x
  2. Step 2: Convert to fraction form
    142,749.66/196,958.07 = 89,060.70/x
  3. Step 3: Cross multiply
    142,749.66x = 196,958.07 × 89,060.70
  4. Step 4: Simplify right side
    142,749.66x = 17,541,223,584.85
  5. Step 5: Solve for x
    x = 17,541,223,584.85/142,749.66
  6. Step 6: Final answer
    x = 122,881.02

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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.