Home / 140,343.13-193,673.69-76,680.93

Finding the Fourth Proportional to 140,343.13, 193,673.69 and 76,680.93

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Solution

The fourth proportional to 140,343.13, 193,673.69 and 76,680.93 is: 105,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,343.13 : 193,673.69 = 76,680.93 : x
  2. Step 2: Convert to fraction form
    140,343.13/193,673.69 = 76,680.93/x
  3. Step 3: Cross multiply
    140,343.13x = 193,673.69 × 76,680.93
  4. Step 4: Simplify right side
    140,343.13x = 14,851,077,843.60
  5. Step 5: Solve for x
    x = 14,851,077,843.60/140,343.13
  6. Step 6: Final answer
    x = 105,819.77

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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.