Home / 106,565.13-159,642.54-66,599.73

Finding the Fourth Proportional to 106,565.13, 159,642.54 and 66,599.73

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Solution

The fourth proportional to 106,565.13, 159,642.54 and 66,599.73 is: 99,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,565.13 : 159,642.54 = 66,599.73 : x
  2. Step 2: Convert to fraction form
    106,565.13/159,642.54 = 66,599.73/x
  3. Step 3: Cross multiply
    106,565.13x = 159,642.54 × 66,599.73
  4. Step 4: Simplify right side
    106,565.13x = 10,632,150,060.51
  5. Step 5: Solve for x
    x = 10,632,150,060.51/106,565.13
  6. Step 6: Final answer
    x = 99,771.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.