Home / 129,878.20-194,802.90-106,463.80

Finding the Fourth Proportional to 129,878.20, 194,802.90 and 106,463.80

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Solution

The fourth proportional to 129,878.20, 194,802.90 and 106,463.80 is: 159,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,878.20 : 194,802.90 = 106,463.80 : x
  2. Step 2: Convert to fraction form
    129,878.20/194,802.90 = 106,463.80/x
  3. Step 3: Cross multiply
    129,878.20x = 194,802.90 × 106,463.80
  4. Step 4: Simplify right side
    129,878.20x = 20,739,456,985.02
  5. Step 5: Solve for x
    x = 20,739,456,985.02/129,878.20
  6. Step 6: Final answer
    x = 159,683.90

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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.