Home / 149,345.06-206,082.50-88,930.40

Finding the Fourth Proportional to 149,345.06, 206,082.50 and 88,930.40

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Solution

The fourth proportional to 149,345.06, 206,082.50 and 88,930.40 is: 122,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,345.06 : 206,082.50 = 88,930.40 : x
  2. Step 2: Convert to fraction form
    149,345.06/206,082.50 = 88,930.40/x
  3. Step 3: Cross multiply
    149,345.06x = 206,082.50 × 88,930.40
  4. Step 4: Simplify right side
    149,345.06x = 18,326,997,682.94
  5. Step 5: Solve for x
    x = 18,326,997,682.94/149,345.06
  6. Step 6: Final answer
    x = 122,715.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.