Home / 207,971.76-287,001.04-112,478.43

Finding the Fourth Proportional to 207,971.76, 287,001.04 and 112,478.43

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Solution

The fourth proportional to 207,971.76, 287,001.04 and 112,478.43 is: 155,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,971.76 : 287,001.04 = 112,478.43 : x
  2. Step 2: Convert to fraction form
    207,971.76/287,001.04 = 112,478.43/x
  3. Step 3: Cross multiply
    207,971.76x = 287,001.04 × 112,478.43
  4. Step 4: Simplify right side
    207,971.76x = 32,281,426,387.57
  5. Step 5: Solve for x
    x = 32,281,426,387.57/207,971.76
  6. Step 6: Final answer
    x = 155,220.24

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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.