Home / 103,616.57-142,980.75-58,293.61

Finding the Fourth Proportional to 103,616.57, 142,980.75 and 58,293.61

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Solution

The fourth proportional to 103,616.57, 142,980.75 and 58,293.61 is: 80,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,616.57 : 142,980.75 = 58,293.61 : x
  2. Step 2: Convert to fraction form
    103,616.57/142,980.75 = 58,293.61/x
  3. Step 3: Cross multiply
    103,616.57x = 142,980.75 × 58,293.61
  4. Step 4: Simplify right side
    103,616.57x = 8,334,863,720.56
  5. Step 5: Solve for x
    x = 8,334,863,720.56/103,616.57
  6. Step 6: Final answer
    x = 80,439.48

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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.