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Finding the Fourth Proportional to 179,891.32, 248,248.62 and 99,319

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Solution

The fourth proportional to 179,891.32, 248,248.62 and 99,319 is: 137,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,891.32 : 248,248.62 = 99,319 : x
  2. Step 2: Convert to fraction form
    179,891.32/248,248.62 = 99,319/x
  3. Step 3: Cross multiply
    179,891.32x = 248,248.62 × 99,319
  4. Step 4: Simplify right side
    179,891.32x = 24,655,804,689.78
  5. Step 5: Solve for x
    x = 24,655,804,689.78/179,891.32
  6. Step 6: Final answer
    x = 137,059.45

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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.