Home / 239,972.40-360,001.80-99,745.20

Finding the Fourth Proportional to 239,972.40, 360,001.80 and 99,745.20

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Solution

The fourth proportional to 239,972.40, 360,001.80 and 99,745.20 is: 149,635.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,972.40 : 360,001.80 = 99,745.20 : x
  2. Step 2: Convert to fraction form
    239,972.40/360,001.80 = 99,745.20/x
  3. Step 3: Cross multiply
    239,972.40x = 360,001.80 × 99,745.20
  4. Step 4: Simplify right side
    239,972.40x = 35,908,451,541.36
  5. Step 5: Solve for x
    x = 35,908,451,541.36/239,972.40
  6. Step 6: Final answer
    x = 149,635.76

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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.