Home / 141,223.77-194,890.35-77,561.57

Finding the Fourth Proportional to 141,223.77, 194,890.35 and 77,561.57

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Solution

The fourth proportional to 141,223.77, 194,890.35 and 77,561.57 is: 107,035.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,223.77 : 194,890.35 = 77,561.57 : x
  2. Step 2: Convert to fraction form
    141,223.77/194,890.35 = 77,561.57/x
  3. Step 3: Cross multiply
    141,223.77x = 194,890.35 × 77,561.57
  4. Step 4: Simplify right side
    141,223.77x = 15,116,000,549.40
  5. Step 5: Solve for x
    x = 15,116,000,549.40/141,223.77
  6. Step 6: Final answer
    x = 107,035.81

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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.