Home / 168,154.25-231,921.59-107,730.47

Finding the Fourth Proportional to 168,154.25, 231,921.59 and 107,730.47

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Solution

The fourth proportional to 168,154.25, 231,921.59 and 107,730.47 is: 148,583.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,154.25 : 231,921.59 = 107,730.47 : x
  2. Step 2: Convert to fraction form
    168,154.25/231,921.59 = 107,730.47/x
  3. Step 3: Cross multiply
    168,154.25x = 231,921.59 × 107,730.47
  4. Step 4: Simplify right side
    168,154.25x = 24,985,021,935.00
  5. Step 5: Solve for x
    x = 24,985,021,935.00/168,154.25
  6. Step 6: Final answer
    x = 148,583.95

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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.