Home / 136,538.20-204,807.30-74,330.20

Finding the Fourth Proportional to 136,538.20, 204,807.30 and 74,330.20

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Solution

The fourth proportional to 136,538.20, 204,807.30 and 74,330.20 is: 111,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,538.20 : 204,807.30 = 74,330.20 : x
  2. Step 2: Convert to fraction form
    136,538.20/204,807.30 = 74,330.20/x
  3. Step 3: Cross multiply
    136,538.20x = 204,807.30 × 74,330.20
  4. Step 4: Simplify right side
    136,538.20x = 15,223,367,570.46
  5. Step 5: Solve for x
    x = 15,223,367,570.46/136,538.20
  6. Step 6: Final answer
    x = 111,495.30

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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.