Home / 164,721.12-227,315.34-89,269.62

Finding the Fourth Proportional to 164,721.12, 227,315.34 and 89,269.62

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Solution

The fourth proportional to 164,721.12, 227,315.34 and 89,269.62 is: 123,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,721.12 : 227,315.34 = 89,269.62 : x
  2. Step 2: Convert to fraction form
    164,721.12/227,315.34 = 89,269.62/x
  3. Step 3: Cross multiply
    164,721.12x = 227,315.34 × 89,269.62
  4. Step 4: Simplify right side
    164,721.12x = 20,292,354,021.97
  5. Step 5: Solve for x
    x = 20,292,354,021.97/164,721.12
  6. Step 6: Final answer
    x = 123,192.18

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1.5x scale

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.