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Finding the Fourth Proportional to 148,771.04, 205,304 and 81,703.04

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Solution

The fourth proportional to 148,771.04, 205,304 and 81,703.04 is: 112,750.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,771.04 : 205,304 = 81,703.04 : x
  2. Step 2: Convert to fraction form
    148,771.04/205,304 = 81,703.04/x
  3. Step 3: Cross multiply
    148,771.04x = 205,304 × 81,703.04
  4. Step 4: Simplify right side
    148,771.04x = 16,773,960,924.16
  5. Step 5: Solve for x
    x = 16,773,960,924.16/148,771.04
  6. Step 6: Final answer
    x = 112,750.18

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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.