Home / 105,877.09-158,718.16-45,867.86

Finding the Fourth Proportional to 105,877.09, 158,718.16 and 45,867.86

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Solution

The fourth proportional to 105,877.09, 158,718.16 and 45,867.86 is: 68,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,877.09 : 158,718.16 = 45,867.86 : x
  2. Step 2: Convert to fraction form
    105,877.09/158,718.16 = 45,867.86/x
  3. Step 3: Cross multiply
    105,877.09x = 158,718.16 × 45,867.86
  4. Step 4: Simplify right side
    105,877.09x = 7,280,062,342.34
  5. Step 5: Solve for x
    x = 7,280,062,342.34/105,877.09
  6. Step 6: Final answer
    x = 68,759.56

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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.