Home / 105,641.28-158,355.27-66,226.07

Finding the Fourth Proportional to 105,641.28, 158,355.27 and 66,226.07

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Solution

The fourth proportional to 105,641.28, 158,355.27 and 66,226.07 is: 99,272.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,641.28 : 158,355.27 = 66,226.07 : x
  2. Step 2: Convert to fraction form
    105,641.28/158,355.27 = 66,226.07/x
  3. Step 3: Cross multiply
    105,641.28x = 158,355.27 × 66,226.07
  4. Step 4: Simplify right side
    105,641.28x = 10,487,247,591.78
  5. Step 5: Solve for x
    x = 10,487,247,591.78/105,641.28
  6. Step 6: Final answer
    x = 99,272.25

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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.