Home / 134,629.74-185,781.46-74,200.20

Finding the Fourth Proportional to 134,629.74, 185,781.46 and 74,200.20

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Solution

The fourth proportional to 134,629.74, 185,781.46 and 74,200.20 is: 102,392.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,629.74 : 185,781.46 = 74,200.20 : x
  2. Step 2: Convert to fraction form
    134,629.74/185,781.46 = 74,200.20/x
  3. Step 3: Cross multiply
    134,629.74x = 185,781.46 × 74,200.20
  4. Step 4: Simplify right side
    134,629.74x = 13,785,021,117.29
  5. Step 5: Solve for x
    x = 13,785,021,117.29/134,629.74
  6. Step 6: Final answer
    x = 102,392.09

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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.