Home / 135,787.02-203,601.07-40,988.78

Finding the Fourth Proportional to 135,787.02, 203,601.07 and 40,988.78

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Solution

The fourth proportional to 135,787.02, 203,601.07 and 40,988.78 is: 61,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,787.02 : 203,601.07 = 40,988.78 : x
  2. Step 2: Convert to fraction form
    135,787.02/203,601.07 = 40,988.78/x
  3. Step 3: Cross multiply
    135,787.02x = 203,601.07 × 40,988.78
  4. Step 4: Simplify right side
    135,787.02x = 8,345,359,465.99
  5. Step 5: Solve for x
    x = 8,345,359,465.99/135,787.02
  6. Step 6: Final answer
    x = 61,459.18

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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.