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Finding the Fourth Proportional to 186,058.08, 279,080.88 and 80,877

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Solution

The fourth proportional to 186,058.08, 279,080.88 and 80,877 is: 121,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,058.08 : 279,080.88 = 80,877 : x
  2. Step 2: Convert to fraction form
    186,058.08/279,080.88 = 80,877/x
  3. Step 3: Cross multiply
    186,058.08x = 279,080.88 × 80,877
  4. Step 4: Simplify right side
    186,058.08x = 22,571,224,331.76
  5. Step 5: Solve for x
    x = 22,571,224,331.76/186,058.08
  6. Step 6: Final answer
    x = 121,312.79

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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.