Home / 125,818.68-188,728.02-113,338.20

Finding the Fourth Proportional to 125,818.68, 188,728.02 and 113,338.20

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Solution

The fourth proportional to 125,818.68, 188,728.02 and 113,338.20 is: 170,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,818.68 : 188,728.02 = 113,338.20 : x
  2. Step 2: Convert to fraction form
    125,818.68/188,728.02 = 113,338.20/x
  3. Step 3: Cross multiply
    125,818.68x = 188,728.02 × 113,338.20
  4. Step 4: Simplify right side
    125,818.68x = 21,390,094,076.36
  5. Step 5: Solve for x
    x = 21,390,094,076.36/125,818.68
  6. Step 6: Final answer
    x = 170,007.30

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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.