Home / 134,148.56-185,121.35-73,719.21

Finding the Fourth Proportional to 134,148.56, 185,121.35 and 73,719.21

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Solution

The fourth proportional to 134,148.56, 185,121.35 and 73,719.21 is: 101,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,148.56 : 185,121.35 = 73,719.21 : x
  2. Step 2: Convert to fraction form
    134,148.56/185,121.35 = 73,719.21/x
  3. Step 3: Cross multiply
    134,148.56x = 185,121.35 × 73,719.21
  4. Step 4: Simplify right side
    134,148.56x = 13,647,000,278.19
  5. Step 5: Solve for x
    x = 13,647,000,278.19/134,148.56
  6. Step 6: Final answer
    x = 101,730.51

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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.