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Finding the Fourth Proportional to 153,593.32, 211,949.94 and 85,608.04

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Solution

The fourth proportional to 153,593.32, 211,949.94 and 85,608.04 is: 118,134.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,593.32 : 211,949.94 = 85,608.04 : x
  2. Step 2: Convert to fraction form
    153,593.32/211,949.94 = 85,608.04/x
  3. Step 3: Cross multiply
    153,593.32x = 211,949.94 × 85,608.04
  4. Step 4: Simplify right side
    153,593.32x = 18,144,618,941.52
  5. Step 5: Solve for x
    x = 18,144,618,941.52/153,593.32
  6. Step 6: Final answer
    x = 118,134.17

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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.