Home / 142,729.74-196,958.52-79,062.93

Finding the Fourth Proportional to 142,729.74, 196,958.52 and 79,062.93

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Solution

The fourth proportional to 142,729.74, 196,958.52 and 79,062.93 is: 109,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,729.74 : 196,958.52 = 79,062.93 : x
  2. Step 2: Convert to fraction form
    142,729.74/196,958.52 = 79,062.93/x
  3. Step 3: Cross multiply
    142,729.74x = 196,958.52 × 79,062.93
  4. Step 4: Simplify right side
    142,729.74x = 15,572,117,679.66
  5. Step 5: Solve for x
    x = 15,572,117,679.66/142,729.74
  6. Step 6: Final answer
    x = 109,102.12

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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.