Home / 135,860.19-203,790.15-89,102.13

Finding the Fourth Proportional to 135,860.19, 203,790.15 and 89,102.13

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Solution

The fourth proportional to 135,860.19, 203,790.15 and 89,102.13 is: 133,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,860.19 : 203,790.15 = 89,102.13 : x
  2. Step 2: Convert to fraction form
    135,860.19/203,790.15 = 89,102.13/x
  3. Step 3: Cross multiply
    135,860.19x = 203,790.15 × 89,102.13
  4. Step 4: Simplify right side
    135,860.19x = 18,158,136,438.02
  5. Step 5: Solve for x
    x = 18,158,136,438.02/135,860.19
  6. Step 6: Final answer
    x = 133,653.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.