Home / 134,713.21-185,903.08-74,286.40

Finding the Fourth Proportional to 134,713.21, 185,903.08 and 74,286.40

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Solution

The fourth proportional to 134,713.21, 185,903.08 and 74,286.40 is: 102,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,713.21 : 185,903.08 = 74,286.40 : x
  2. Step 2: Convert to fraction form
    134,713.21/185,903.08 = 74,286.40/x
  3. Step 3: Cross multiply
    134,713.21x = 185,903.08 × 74,286.40
  4. Step 4: Simplify right side
    134,713.21x = 13,810,070,562.11
  5. Step 5: Solve for x
    x = 13,810,070,562.11/134,713.21
  6. Step 6: Final answer
    x = 102,514.60

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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.