Home / 115,633.19-159,617.91-75,356.84

Finding the Fourth Proportional to 115,633.19, 159,617.91 and 75,356.84

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Solution

The fourth proportional to 115,633.19, 159,617.91 and 75,356.84 is: 104,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,633.19 : 159,617.91 = 75,356.84 : x
  2. Step 2: Convert to fraction form
    115,633.19/159,617.91 = 75,356.84/x
  3. Step 3: Cross multiply
    115,633.19x = 159,617.91 × 75,356.84
  4. Step 4: Simplify right side
    115,633.19x = 12,028,300,506.91
  5. Step 5: Solve for x
    x = 12,028,300,506.91/115,633.19
  6. Step 6: Final answer
    x = 104,021.18

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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.