Home / 103,604.28-142,960.46-58,280.73

Finding the Fourth Proportional to 103,604.28, 142,960.46 and 58,280.73

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Solution

The fourth proportional to 103,604.28, 142,960.46 and 58,280.73 is: 80,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,604.28 : 142,960.46 = 58,280.73 : x
  2. Step 2: Convert to fraction form
    103,604.28/142,960.46 = 58,280.73/x
  3. Step 3: Cross multiply
    103,604.28x = 142,960.46 × 58,280.73
  4. Step 4: Simplify right side
    103,604.28x = 8,331,839,678.53
  5. Step 5: Solve for x
    x = 8,331,839,678.53/103,604.28
  6. Step 6: Final answer
    x = 80,419.84

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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.