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Finding the Fourth Proportional to 104,654.40, 144,803.38 and 91,253.58

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Solution

The fourth proportional to 104,654.40, 144,803.38 and 91,253.58 is: 126,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,654.40 : 144,803.38 = 91,253.58 : x
  2. Step 2: Convert to fraction form
    104,654.40/144,803.38 = 91,253.58/x
  3. Step 3: Cross multiply
    104,654.40x = 144,803.38 × 91,253.58
  4. Step 4: Simplify right side
    104,654.40x = 13,213,826,821.10
  5. Step 5: Solve for x
    x = 13,213,826,821.10/104,654.40
  6. Step 6: Final answer
    x = 126,261.55

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1.5x scale

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.