Home / 90,882.03-136,401.81-90,671.88

Finding the Fourth Proportional to 90,882.03, 136,401.81 and 90,671.88

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Solution

The fourth proportional to 90,882.03, 136,401.81 and 90,671.88 is: 136,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,882.03 : 136,401.81 = 90,671.88 : x
  2. Step 2: Convert to fraction form
    90,882.03/136,401.81 = 90,671.88/x
  3. Step 3: Cross multiply
    90,882.03x = 136,401.81 × 90,671.88
  4. Step 4: Simplify right side
    90,882.03x = 12,367,808,548.10
  5. Step 5: Solve for x
    x = 12,367,808,548.10/90,882.03
  6. Step 6: Final answer
    x = 136,086.40

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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.