Home / 141,865.81-195,771.12-77,336.32

Finding the Fourth Proportional to 141,865.81, 195,771.12 and 77,336.32

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Solution

The fourth proportional to 141,865.81, 195,771.12 and 77,336.32 is: 106,722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,865.81 : 195,771.12 = 77,336.32 : x
  2. Step 2: Convert to fraction form
    141,865.81/195,771.12 = 77,336.32/x
  3. Step 3: Cross multiply
    141,865.81x = 195,771.12 × 77,336.32
  4. Step 4: Simplify right side
    141,865.81x = 15,140,217,983.08
  5. Step 5: Solve for x
    x = 15,140,217,983.08/141,865.81
  6. Step 6: Final answer
    x = 106,722.11

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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.