Home / 141,580.91-195,379.63-77,918.71

Finding the Fourth Proportional to 141,580.91, 195,379.63 and 77,918.71

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Solution

The fourth proportional to 141,580.91, 195,379.63 and 77,918.71 is: 107,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,580.91 : 195,379.63 = 77,918.71 : x
  2. Step 2: Convert to fraction form
    141,580.91/195,379.63 = 77,918.71/x
  3. Step 3: Cross multiply
    141,580.91x = 195,379.63 × 77,918.71
  4. Step 4: Simplify right side
    141,580.91x = 15,223,728,741.69
  5. Step 5: Solve for x
    x = 15,223,728,741.69/141,580.91
  6. Step 6: Final answer
    x = 107,526.70

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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.