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Finding the Fourth Proportional to 104,687.30, 144,455.38 and 70,769.56

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Solution

The fourth proportional to 104,687.30, 144,455.38 and 70,769.56 is: 97,653.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,687.30 : 144,455.38 = 70,769.56 : x
  2. Step 2: Convert to fraction form
    104,687.30/144,455.38 = 70,769.56/x
  3. Step 3: Cross multiply
    104,687.30x = 144,455.38 × 70,769.56
  4. Step 4: Simplify right side
    104,687.30x = 10,223,043,144.17
  5. Step 5: Solve for x
    x = 10,223,043,144.17/104,687.30
  6. Step 6: Final answer
    x = 97,653.14

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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.