Home / 212,910.90-293,821.26-137,590.62

Finding the Fourth Proportional to 212,910.90, 293,821.26 and 137,590.62

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Solution

The fourth proportional to 212,910.90, 293,821.26 and 137,590.62 is: 189,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,910.90 : 293,821.26 = 137,590.62 : x
  2. Step 2: Convert to fraction form
    212,910.90/293,821.26 = 137,590.62/x
  3. Step 3: Cross multiply
    212,910.90x = 293,821.26 × 137,590.62
  4. Step 4: Simplify right side
    212,910.90x = 40,427,049,332.58
  5. Step 5: Solve for x
    x = 40,427,049,332.58/212,910.90
  6. Step 6: Final answer
    x = 189,877.78

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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.