Home / 105,666.40-158,568.32-45,753.40

Finding the Fourth Proportional to 105,666.40, 158,568.32 and 45,753.40

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Solution

The fourth proportional to 105,666.40, 158,568.32 and 45,753.40 is: 68,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,666.40 : 158,568.32 = 45,753.40 : x
  2. Step 2: Convert to fraction form
    105,666.40/158,568.32 = 45,753.40/x
  3. Step 3: Cross multiply
    105,666.40x = 158,568.32 × 45,753.40
  4. Step 4: Simplify right side
    105,666.40x = 7,255,039,772.29
  5. Step 5: Solve for x
    x = 7,255,039,772.29/105,666.40
  6. Step 6: Final answer
    x = 68,659.86

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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.