Home / 142,713.60-196,951.02-79,051.40

Finding the Fourth Proportional to 142,713.60, 196,951.02 and 79,051.40

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Solution

The fourth proportional to 142,713.60, 196,951.02 and 79,051.40 is: 109,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,713.60 : 196,951.02 = 79,051.40 : x
  2. Step 2: Convert to fraction form
    142,713.60/196,951.02 = 79,051.40/x
  3. Step 3: Cross multiply
    142,713.60x = 196,951.02 × 79,051.40
  4. Step 4: Simplify right side
    142,713.60x = 15,569,253,862.43
  5. Step 5: Solve for x
    x = 15,569,253,862.43/142,713.60
  6. Step 6: Final answer
    x = 109,094.40

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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.