Home / 109,213.98-163,820.85-34,340.68

Finding the Fourth Proportional to 109,213.98, 163,820.85 and 34,340.68

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Solution

The fourth proportional to 109,213.98, 163,820.85 and 34,340.68 is: 51,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,213.98 : 163,820.85 = 34,340.68 : x
  2. Step 2: Convert to fraction form
    109,213.98/163,820.85 = 34,340.68/x
  3. Step 3: Cross multiply
    109,213.98x = 163,820.85 × 34,340.68
  4. Step 4: Simplify right side
    109,213.98x = 5,625,719,387.18
  5. Step 5: Solve for x
    x = 5,625,719,387.18/109,213.98
  6. Step 6: Final answer
    x = 51,510.98

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1.5x scale

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.