Home / 141,871.34-195,776.46-77,339.18

Finding the Fourth Proportional to 141,871.34, 195,776.46 and 77,339.18

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Solution

The fourth proportional to 141,871.34, 195,776.46 and 77,339.18 is: 106,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,871.34 : 195,776.46 = 77,339.18 : x
  2. Step 2: Convert to fraction form
    141,871.34/195,776.46 = 77,339.18/x
  3. Step 3: Cross multiply
    141,871.34x = 195,776.46 × 77,339.18
  4. Step 4: Simplify right side
    141,871.34x = 15,141,191,369.14
  5. Step 5: Solve for x
    x = 15,141,191,369.14/141,871.34
  6. Step 6: Final answer
    x = 106,724.81

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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.