Home / 141,808.42-195,693.11-77,278.23

Finding the Fourth Proportional to 141,808.42, 195,693.11 and 77,278.23

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Solution

The fourth proportional to 141,808.42, 195,693.11 and 77,278.23 is: 106,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.42 : 195,693.11 = 77,278.23 : x
  2. Step 2: Convert to fraction form
    141,808.42/195,693.11 = 77,278.23/x
  3. Step 3: Cross multiply
    141,808.42x = 195,693.11 × 77,278.23
  4. Step 4: Simplify right side
    141,808.42x = 15,122,817,164.00
  5. Step 5: Solve for x
    x = 15,122,817,164.00/141,808.42
  6. Step 6: Final answer
    x = 106,642.59

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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.