Home / 141,808.70-195,697.31-78,148.76

Finding the Fourth Proportional to 141,808.70, 195,697.31 and 78,148.76

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Solution

The fourth proportional to 141,808.70, 195,697.31 and 78,148.76 is: 107,846.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.70 : 195,697.31 = 78,148.76 : x
  2. Step 2: Convert to fraction form
    141,808.70/195,697.31 = 78,148.76/x
  3. Step 3: Cross multiply
    141,808.70x = 195,697.31 × 78,148.76
  4. Step 4: Simplify right side
    141,808.70x = 15,293,502,111.84
  5. Step 5: Solve for x
    x = 15,293,502,111.84/141,808.70
  6. Step 6: Final answer
    x = 107,846.01

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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.