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Finding the Fourth Proportional to 108,891.68, 163,260.29 and 42,275.66

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Solution

The fourth proportional to 108,891.68, 163,260.29 and 42,275.66 is: 63,383.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,891.68 : 163,260.29 = 42,275.66 : x
  2. Step 2: Convert to fraction form
    108,891.68/163,260.29 = 42,275.66/x
  3. Step 3: Cross multiply
    108,891.68x = 163,260.29 × 42,275.66
  4. Step 4: Simplify right side
    108,891.68x = 6,901,935,800.93
  5. Step 5: Solve for x
    x = 6,901,935,800.93/108,891.68
  6. Step 6: Final answer
    x = 63,383.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.