Home / 129,741.40-194,612.10-108,746.20

Finding the Fourth Proportional to 129,741.40, 194,612.10 and 108,746.20

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Solution

The fourth proportional to 129,741.40, 194,612.10 and 108,746.20 is: 163,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,741.40 : 194,612.10 = 108,746.20 : x
  2. Step 2: Convert to fraction form
    129,741.40/194,612.10 = 108,746.20/x
  3. Step 3: Cross multiply
    129,741.40x = 194,612.10 × 108,746.20
  4. Step 4: Simplify right side
    129,741.40x = 21,163,326,349.02
  5. Step 5: Solve for x
    x = 21,163,326,349.02/129,741.40
  6. Step 6: Final answer
    x = 163,119.30

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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.