Home / 90,738.18-136,106.81-23,269.91

Finding the Fourth Proportional to 90,738.18, 136,106.81 and 23,269.91

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Solution

The fourth proportional to 90,738.18, 136,106.81 and 23,269.91 is: 34,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,738.18 : 136,106.81 = 23,269.91 : x
  2. Step 2: Convert to fraction form
    90,738.18/136,106.81 = 23,269.91/x
  3. Step 3: Cross multiply
    90,738.18x = 136,106.81 × 23,269.91
  4. Step 4: Simplify right side
    90,738.18x = 3,167,193,102.74
  5. Step 5: Solve for x
    x = 3,167,193,102.74/90,738.18
  6. Step 6: Final answer
    x = 34,904.75

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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.