Home / 129,827.70-194,741.55-66,842.10

Finding the Fourth Proportional to 129,827.70, 194,741.55 and 66,842.10

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Solution

The fourth proportional to 129,827.70, 194,741.55 and 66,842.10 is: 100,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,827.70 : 194,741.55 = 66,842.10 : x
  2. Step 2: Convert to fraction form
    129,827.70/194,741.55 = 66,842.10/x
  3. Step 3: Cross multiply
    129,827.70x = 194,741.55 × 66,842.10
  4. Step 4: Simplify right side
    129,827.70x = 13,016,934,159.26
  5. Step 5: Solve for x
    x = 13,016,934,159.26/129,827.70
  6. Step 6: Final answer
    x = 100,263.15

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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.