Home / 195,045.11-292,623.70-81,170.75

Finding the Fourth Proportional to 195,045.11, 292,623.70 and 81,170.75

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Solution

The fourth proportional to 195,045.11, 292,623.70 and 81,170.75 is: 121,779.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,045.11 : 292,623.70 = 81,170.75 : x
  2. Step 2: Convert to fraction form
    195,045.11/292,623.70 = 81,170.75/x
  3. Step 3: Cross multiply
    195,045.11x = 292,623.70 × 81,170.75
  4. Step 4: Simplify right side
    195,045.11x = 23,752,485,196.78
  5. Step 5: Solve for x
    x = 23,752,485,196.78/195,045.11
  6. Step 6: Final answer
    x = 121,779.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.