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Finding the Fourth Proportional to 104,506.32, 144,260.08 and 72,693.68

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Solution

The fourth proportional to 104,506.32, 144,260.08 and 72,693.68 is: 100,346.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,506.32 : 144,260.08 = 72,693.68 : x
  2. Step 2: Convert to fraction form
    104,506.32/144,260.08 = 72,693.68/x
  3. Step 3: Cross multiply
    104,506.32x = 144,260.08 × 72,693.68
  4. Step 4: Simplify right side
    104,506.32x = 10,486,796,092.29
  5. Step 5: Solve for x
    x = 10,486,796,092.29/104,506.32
  6. Step 6: Final answer
    x = 100,346.05

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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.