Home / 142,926.80-197,226.06-79,264.40

Finding the Fourth Proportional to 142,926.80, 197,226.06 and 79,264.40

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Solution

The fourth proportional to 142,926.80, 197,226.06 and 79,264.40 is: 109,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,926.80 : 197,226.06 = 79,264.40 : x
  2. Step 2: Convert to fraction form
    142,926.80/197,226.06 = 79,264.40/x
  3. Step 3: Cross multiply
    142,926.80x = 197,226.06 × 79,264.40
  4. Step 4: Simplify right side
    142,926.80x = 15,633,005,310.26
  5. Step 5: Solve for x
    x = 15,633,005,310.26/142,926.80
  6. Step 6: Final answer
    x = 109,377.70

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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.