Home / 140,337.72-193,668.84-76,679.46

Finding the Fourth Proportional to 140,337.72, 193,668.84 and 76,679.46

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Solution

The fourth proportional to 140,337.72, 193,668.84 and 76,679.46 is: 105,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,337.72 : 193,668.84 = 76,679.46 : x
  2. Step 2: Convert to fraction form
    140,337.72/193,668.84 = 76,679.46/x
  3. Step 3: Cross multiply
    140,337.72x = 193,668.84 × 76,679.46
  4. Step 4: Simplify right side
    140,337.72x = 14,850,422,070.03
  5. Step 5: Solve for x
    x = 14,850,422,070.03/140,337.72
  6. Step 6: Final answer
    x = 105,819.18

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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.