Home / 90,881.53-136,401.06-90,671.38

Finding the Fourth Proportional to 90,881.53, 136,401.06 and 90,671.38

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Solution

The fourth proportional to 90,881.53, 136,401.06 and 90,671.38 is: 136,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,881.53 : 136,401.06 = 90,671.38 : x
  2. Step 2: Convert to fraction form
    90,881.53/136,401.06 = 90,671.38/x
  3. Step 3: Cross multiply
    90,881.53x = 136,401.06 × 90,671.38
  4. Step 4: Simplify right side
    90,881.53x = 12,367,672,343.66
  5. Step 5: Solve for x
    x = 12,367,672,343.66/90,881.53
  6. Step 6: Final answer
    x = 136,085.65

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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.