Home / 141,424.08-195,165.96-77,766

Finding the Fourth Proportional to 141,424.08, 195,165.96 and 77,766

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Solution

The fourth proportional to 141,424.08, 195,165.96 and 77,766 is: 107,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,424.08 : 195,165.96 = 77,766 : x
  2. Step 2: Convert to fraction form
    141,424.08/195,165.96 = 77,766/x
  3. Step 3: Cross multiply
    141,424.08x = 195,165.96 × 77,766
  4. Step 4: Simplify right side
    141,424.08x = 15,177,276,045.36
  5. Step 5: Solve for x
    x = 15,177,276,045.36/141,424.08
  6. Step 6: Final answer
    x = 107,317.48

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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.