Home / 149,312.76-206,044.47-81,329.42

Finding the Fourth Proportional to 149,312.76, 206,044.47 and 81,329.42

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Solution

The fourth proportional to 149,312.76, 206,044.47 and 81,329.42 is: 112,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,312.76 : 206,044.47 = 81,329.42 : x
  2. Step 2: Convert to fraction form
    149,312.76/206,044.47 = 81,329.42/x
  3. Step 3: Cross multiply
    149,312.76x = 206,044.47 × 81,329.42
  4. Step 4: Simplify right side
    149,312.76x = 16,757,476,209.09
  5. Step 5: Solve for x
    x = 16,757,476,209.09/149,312.76
  6. Step 6: Final answer
    x = 112,230.70

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1.5x scale

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.