Home / 109,173.06-163,752.21-42,600.78

Finding the Fourth Proportional to 109,173.06, 163,752.21 and 42,600.78

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Solution

The fourth proportional to 109,173.06, 163,752.21 and 42,600.78 is: 63,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,173.06 : 163,752.21 = 42,600.78 : x
  2. Step 2: Convert to fraction form
    109,173.06/163,752.21 = 42,600.78/x
  3. Step 3: Cross multiply
    109,173.06x = 163,752.21 × 42,600.78
  4. Step 4: Simplify right side
    109,173.06x = 6,975,971,872.72
  5. Step 5: Solve for x
    x = 6,975,971,872.72/109,173.06
  6. Step 6: Final answer
    x = 63,898.29

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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.