Home / 149,529.65-206,382.95-85,902.53

Finding the Fourth Proportional to 149,529.65, 206,382.95 and 85,902.53

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Solution

The fourth proportional to 149,529.65, 206,382.95 and 85,902.53 is: 118,563.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,529.65 : 206,382.95 = 85,902.53 : x
  2. Step 2: Convert to fraction form
    149,529.65/206,382.95 = 85,902.53/x
  3. Step 3: Cross multiply
    149,529.65x = 206,382.95 × 85,902.53
  4. Step 4: Simplify right side
    149,529.65x = 17,728,817,553.86
  5. Step 5: Solve for x
    x = 17,728,817,553.86/149,529.65
  6. Step 6: Final answer
    x = 118,563.89

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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.