Home / 207,972.14-287,001.56-112,478.80

Finding the Fourth Proportional to 207,972.14, 287,001.56 and 112,478.80

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Solution

The fourth proportional to 207,972.14, 287,001.56 and 112,478.80 is: 155,220.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,972.14 : 287,001.56 = 112,478.80 : x
  2. Step 2: Convert to fraction form
    207,972.14/287,001.56 = 112,478.80/x
  3. Step 3: Cross multiply
    207,972.14x = 287,001.56 × 112,478.80
  4. Step 4: Simplify right side
    207,972.14x = 32,281,591,066.93
  5. Step 5: Solve for x
    x = 32,281,591,066.93/207,972.14
  6. Step 6: Final answer
    x = 155,220.75

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1.5x scale

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.