Home / 115,449.48-159,346.85-67,718.21

Finding the Fourth Proportional to 115,449.48, 159,346.85 and 67,718.21

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Solution

The fourth proportional to 115,449.48, 159,346.85 and 67,718.21 is: 93,466.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,449.48 : 159,346.85 = 67,718.21 : x
  2. Step 2: Convert to fraction form
    115,449.48/159,346.85 = 67,718.21/x
  3. Step 3: Cross multiply
    115,449.48x = 159,346.85 × 67,718.21
  4. Step 4: Simplify right side
    115,449.48x = 10,790,682,315.81
  5. Step 5: Solve for x
    x = 10,790,682,315.81/115,449.48
  6. Step 6: Final answer
    x = 93,466.70

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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.