Home / 127,280.12-190,920-32,510.40

Finding the Fourth Proportional to 127,280.12, 190,920 and 32,510.40

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Solution

The fourth proportional to 127,280.12, 190,920 and 32,510.40 is: 48,765.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,280.12 : 190,920 = 32,510.40 : x
  2. Step 2: Convert to fraction form
    127,280.12/190,920 = 32,510.40/x
  3. Step 3: Cross multiply
    127,280.12x = 190,920 × 32,510.40
  4. Step 4: Simplify right side
    127,280.12x = 6,206,885,568
  5. Step 5: Solve for x
    x = 6,206,885,568/127,280.12
  6. Step 6: Final answer
    x = 48,765.56

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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.