Home / 134,728.43-185,926.53-74,301.21

Finding the Fourth Proportional to 134,728.43, 185,926.53 and 74,301.21

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Solution

The fourth proportional to 134,728.43, 185,926.53 and 74,301.21 is: 102,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,728.43 : 185,926.53 = 74,301.21 : x
  2. Step 2: Convert to fraction form
    134,728.43/185,926.53 = 74,301.21/x
  3. Step 3: Cross multiply
    134,728.43x = 185,926.53 × 74,301.21
  4. Step 4: Simplify right side
    134,728.43x = 13,814,566,150.10
  5. Step 5: Solve for x
    x = 13,814,566,150.10/134,728.43
  6. Step 6: Final answer
    x = 102,536.39

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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.