Home / 136,981.72-205,514.10-97,077.85

Finding the Fourth Proportional to 136,981.72, 205,514.10 and 97,077.85

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Solution

The fourth proportional to 136,981.72, 205,514.10 and 97,077.85 is: 145,646.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,981.72 : 205,514.10 = 97,077.85 : x
  2. Step 2: Convert to fraction form
    136,981.72/205,514.10 = 97,077.85/x
  3. Step 3: Cross multiply
    136,981.72x = 205,514.10 × 97,077.85
  4. Step 4: Simplify right side
    136,981.72x = 19,950,867,767.41
  5. Step 5: Solve for x
    x = 19,950,867,767.41/136,981.72
  6. Step 6: Final answer
    x = 145,646.21

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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.