Home / 259,139.20-388,271.40-125,732.20

Finding the Fourth Proportional to 259,139.20, 388,271.40 and 125,732.20

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Solution

The fourth proportional to 259,139.20, 388,271.40 and 125,732.20 is: 188,386.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,139.20 : 388,271.40 = 125,732.20 : x
  2. Step 2: Convert to fraction form
    259,139.20/388,271.40 = 125,732.20/x
  3. Step 3: Cross multiply
    259,139.20x = 388,271.40 × 125,732.20
  4. Step 4: Simplify right side
    259,139.20x = 48,818,217,319.08
  5. Step 5: Solve for x
    x = 48,818,217,319.08/259,139.20
  6. Step 6: Final answer
    x = 188,386.08

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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.