Home / 149,699.56-206,580.16-89,239

Finding the Fourth Proportional to 149,699.56, 206,580.16 and 89,239

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Solution

The fourth proportional to 149,699.56, 206,580.16 and 89,239 is: 123,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,699.56 : 206,580.16 = 89,239 : x
  2. Step 2: Convert to fraction form
    149,699.56/206,580.16 = 89,239/x
  3. Step 3: Cross multiply
    149,699.56x = 206,580.16 × 89,239
  4. Step 4: Simplify right side
    149,699.56x = 18,435,006,898.24
  5. Step 5: Solve for x
    x = 18,435,006,898.24/149,699.56
  6. Step 6: Final answer
    x = 123,146.70

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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.