Home / 122,389.26-183,227.30-90,938.72

Finding the Fourth Proportional to 122,389.26, 183,227.30 and 90,938.72

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Solution

The fourth proportional to 122,389.26, 183,227.30 and 90,938.72 is: 136,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,389.26 : 183,227.30 = 90,938.72 : x
  2. Step 2: Convert to fraction form
    122,389.26/183,227.30 = 90,938.72/x
  3. Step 3: Cross multiply
    122,389.26x = 183,227.30 × 90,938.72
  4. Step 4: Simplify right side
    122,389.26x = 16,662,455,442.27
  5. Step 5: Solve for x
    x = 16,662,455,442.27/122,389.26
  6. Step 6: Final answer
    x = 136,143.12

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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.