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Finding the Fourth Proportional to 153,482.08, 211,805.64 and 88,963.78

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Solution

The fourth proportional to 153,482.08, 211,805.64 and 88,963.78 is: 122,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,482.08 : 211,805.64 = 88,963.78 : x
  2. Step 2: Convert to fraction form
    153,482.08/211,805.64 = 88,963.78/x
  3. Step 3: Cross multiply
    153,482.08x = 211,805.64 × 88,963.78
  4. Step 4: Simplify right side
    153,482.08x = 18,843,030,359.72
  5. Step 5: Solve for x
    x = 18,843,030,359.72/153,482.08
  6. Step 6: Final answer
    x = 122,770.23

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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.