Home / 103,604.04-142,960.10-58,280.48

Finding the Fourth Proportional to 103,604.04, 142,960.10 and 58,280.48

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Solution

The fourth proportional to 103,604.04, 142,960.10 and 58,280.48 is: 80,419.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,604.04 : 142,960.10 = 58,280.48 : x
  2. Step 2: Convert to fraction form
    103,604.04/142,960.10 = 58,280.48/x
  3. Step 3: Cross multiply
    103,604.04x = 142,960.10 × 58,280.48
  4. Step 4: Simplify right side
    103,604.04x = 8,331,783,248.85
  5. Step 5: Solve for x
    x = 8,331,783,248.85/103,604.04
  6. Step 6: Final answer
    x = 80,419.48

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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.