Home / 142,932.83-197,259.41-79,291.13

Finding the Fourth Proportional to 142,932.83, 197,259.41 and 79,291.13

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Solution

The fourth proportional to 142,932.83, 197,259.41 and 79,291.13 is: 109,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,932.83 : 197,259.41 = 79,291.13 : x
  2. Step 2: Convert to fraction form
    142,932.83/197,259.41 = 79,291.13/x
  3. Step 3: Cross multiply
    142,932.83x = 197,259.41 × 79,291.13
  4. Step 4: Simplify right side
    142,932.83x = 15,640,920,733.96
  5. Step 5: Solve for x
    x = 15,640,920,733.96/142,932.83
  6. Step 6: Final answer
    x = 109,428.47

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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.