Home / 136,922.70-205,403.65-42,160.91

Finding the Fourth Proportional to 136,922.70, 205,403.65 and 42,160.91

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Solution

The fourth proportional to 136,922.70, 205,403.65 and 42,160.91 is: 63,247.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,922.70 : 205,403.65 = 42,160.91 : x
  2. Step 2: Convert to fraction form
    136,922.70/205,403.65 = 42,160.91/x
  3. Step 3: Cross multiply
    136,922.70x = 205,403.65 × 42,160.91
  4. Step 4: Simplify right side
    136,922.70x = 8,660,003,668.90
  5. Step 5: Solve for x
    x = 8,660,003,668.90/136,922.70
  6. Step 6: Final answer
    x = 63,247.39

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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.