Home / 135,890.61-187,522.77-75,465.11

Finding the Fourth Proportional to 135,890.61, 187,522.77 and 75,465.11

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Solution

The fourth proportional to 135,890.61, 187,522.77 and 75,465.11 is: 104,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,890.61 : 187,522.77 = 75,465.11 : x
  2. Step 2: Convert to fraction form
    135,890.61/187,522.77 = 75,465.11/x
  3. Step 3: Cross multiply
    135,890.61x = 187,522.77 × 75,465.11
  4. Step 4: Simplify right side
    135,890.61x = 14,151,425,527.94
  5. Step 5: Solve for x
    x = 14,151,425,527.94/135,890.61
  6. Step 6: Final answer
    x = 104,138.36

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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.