Home / 105,380.04-145,422.42-57,633.24

Finding the Fourth Proportional to 105,380.04, 145,422.42 and 57,633.24

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Solution

The fourth proportional to 105,380.04, 145,422.42 and 57,633.24 is: 79,532.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,380.04 : 145,422.42 = 57,633.24 : x
  2. Step 2: Convert to fraction form
    105,380.04/145,422.42 = 57,633.24/x
  3. Step 3: Cross multiply
    105,380.04x = 145,422.42 × 57,633.24
  4. Step 4: Simplify right side
    105,380.04x = 8,381,165,233.24
  5. Step 5: Solve for x
    x = 8,381,165,233.24/105,380.04
  6. Step 6: Final answer
    x = 79,532.76

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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.