Home / 103,858.29-143,343.11-99,125.27

Finding the Fourth Proportional to 103,858.29, 143,343.11 and 99,125.27

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Solution

The fourth proportional to 103,858.29, 143,343.11 and 99,125.27 is: 136,810.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,858.29 : 143,343.11 = 99,125.27 : x
  2. Step 2: Convert to fraction form
    103,858.29/143,343.11 = 99,125.27/x
  3. Step 3: Cross multiply
    103,858.29x = 143,343.11 × 99,125.27
  4. Step 4: Simplify right side
    103,858.29x = 14,208,923,269.05
  5. Step 5: Solve for x
    x = 14,208,923,269.05/103,858.29
  6. Step 6: Final answer
    x = 136,810.68

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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.