Home / 121,525.40-182,288.10-74,286.20

Finding the Fourth Proportional to 121,525.40, 182,288.10 and 74,286.20

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Solution

The fourth proportional to 121,525.40, 182,288.10 and 74,286.20 is: 111,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,525.40 : 182,288.10 = 74,286.20 : x
  2. Step 2: Convert to fraction form
    121,525.40/182,288.10 = 74,286.20/x
  3. Step 3: Cross multiply
    121,525.40x = 182,288.10 × 74,286.20
  4. Step 4: Simplify right side
    121,525.40x = 13,541,490,254.22
  5. Step 5: Solve for x
    x = 13,541,490,254.22/121,525.40
  6. Step 6: Final answer
    x = 111,429.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.