Home / 207,930.17-286,943.28-117,285.86

Finding the Fourth Proportional to 207,930.17, 286,943.28 and 117,285.86

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Solution

The fourth proportional to 207,930.17, 286,943.28 and 117,285.86 is: 161,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,930.17 : 286,943.28 = 117,285.86 : x
  2. Step 2: Convert to fraction form
    207,930.17/286,943.28 = 117,285.86/x
  3. Step 3: Cross multiply
    207,930.17x = 286,943.28 × 117,285.86
  4. Step 4: Simplify right side
    207,930.17x = 33,654,387,931.30
  5. Step 5: Solve for x
    x = 33,654,387,931.30/207,930.17
  6. Step 6: Final answer
    x = 161,854.28

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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.