Home / 136,898.29-205,367.15-42,136.57

Finding the Fourth Proportional to 136,898.29, 205,367.15 and 42,136.57

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Solution

The fourth proportional to 136,898.29, 205,367.15 and 42,136.57 is: 63,210.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,898.29 : 205,367.15 = 42,136.57 : x
  2. Step 2: Convert to fraction form
    136,898.29/205,367.15 = 42,136.57/x
  3. Step 3: Cross multiply
    136,898.29x = 205,367.15 × 42,136.57
  4. Step 4: Simplify right side
    136,898.29x = 8,653,467,291.68
  5. Step 5: Solve for x
    x = 8,653,467,291.68/136,898.29
  6. Step 6: Final answer
    x = 63,210.92

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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.