Home / 140,702.16-194,168.09-76,170.92

Finding the Fourth Proportional to 140,702.16, 194,168.09 and 76,170.92

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Solution

The fourth proportional to 140,702.16, 194,168.09 and 76,170.92 is: 105,115.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,702.16 : 194,168.09 = 76,170.92 : x
  2. Step 2: Convert to fraction form
    140,702.16/194,168.09 = 76,170.92/x
  3. Step 3: Cross multiply
    140,702.16x = 194,168.09 × 76,170.92
  4. Step 4: Simplify right side
    140,702.16x = 14,789,962,154.51
  5. Step 5: Solve for x
    x = 14,789,962,154.51/140,702.16
  6. Step 6: Final answer
    x = 105,115.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.