Home / 135,916.07-187,565.36-75,487.77

Finding the Fourth Proportional to 135,916.07, 187,565.36 and 75,487.77

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Solution

The fourth proportional to 135,916.07, 187,565.36 and 75,487.77 is: 104,173.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,916.07 : 187,565.36 = 75,487.77 : x
  2. Step 2: Convert to fraction form
    135,916.07/187,565.36 = 75,487.77/x
  3. Step 3: Cross multiply
    135,916.07x = 187,565.36 × 75,487.77
  4. Step 4: Simplify right side
    135,916.07x = 14,158,890,378.21
  5. Step 5: Solve for x
    x = 14,158,890,378.21/135,916.07
  6. Step 6: Final answer
    x = 104,173.78

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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.