Home / 207,972.48-287,002.02-112,479.18

Finding the Fourth Proportional to 207,972.48, 287,002.02 and 112,479.18

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Solution

The fourth proportional to 207,972.48, 287,002.02 and 112,479.18 is: 155,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,972.48 : 287,002.02 = 112,479.18 : x
  2. Step 2: Convert to fraction form
    207,972.48/287,002.02 = 112,479.18/x
  3. Step 3: Cross multiply
    207,972.48x = 287,002.02 × 112,479.18
  4. Step 4: Simplify right side
    207,972.48x = 32,281,750,432.93
  5. Step 5: Solve for x
    x = 32,281,750,432.93/207,972.48
  6. Step 6: Final answer
    x = 155,221.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.