Home / 149,686.52-206,562.25-89,225.99

Finding the Fourth Proportional to 149,686.52, 206,562.25 and 89,225.99

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Solution

The fourth proportional to 149,686.52, 206,562.25 and 89,225.99 is: 123,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,686.52 : 206,562.25 = 89,225.99 : x
  2. Step 2: Convert to fraction form
    149,686.52/206,562.25 = 89,225.99/x
  3. Step 3: Cross multiply
    149,686.52x = 206,562.25 × 89,225.99
  4. Step 4: Simplify right side
    149,686.52x = 18,430,721,106.21
  5. Step 5: Solve for x
    x = 18,430,721,106.21/149,686.52
  6. Step 6: Final answer
    x = 123,128.80

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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.