Home / 141,816.62-195,711.03-78,158.51

Finding the Fourth Proportional to 141,816.62, 195,711.03 and 78,158.51

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Solution

The fourth proportional to 141,816.62, 195,711.03 and 78,158.51 is: 107,861.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,816.62 : 195,711.03 = 78,158.51 : x
  2. Step 2: Convert to fraction form
    141,816.62/195,711.03 = 78,158.51/x
  3. Step 3: Cross multiply
    141,816.62x = 195,711.03 × 78,158.51
  4. Step 4: Simplify right side
    141,816.62x = 15,296,482,984.64
  5. Step 5: Solve for x
    x = 15,296,482,984.64/141,816.62
  6. Step 6: Final answer
    x = 107,861.01

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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.