Home / 134,175.38-185,158.11-76,812.80

Finding the Fourth Proportional to 134,175.38, 185,158.11 and 76,812.80

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Solution

The fourth proportional to 134,175.38, 185,158.11 and 76,812.80 is: 105,999.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,175.38 : 185,158.11 = 76,812.80 : x
  2. Step 2: Convert to fraction form
    134,175.38/185,158.11 = 76,812.80/x
  3. Step 3: Cross multiply
    134,175.38x = 185,158.11 × 76,812.80
  4. Step 4: Simplify right side
    134,175.38x = 14,222,512,871.81
  5. Step 5: Solve for x
    x = 14,222,512,871.81/134,175.38
  6. Step 6: Final answer
    x = 105,999.42

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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.