Home / 163,255.68-225,285.25-90,663.18

Finding the Fourth Proportional to 163,255.68, 225,285.25 and 90,663.18

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Solution

The fourth proportional to 163,255.68, 225,285.25 and 90,663.18 is: 125,110.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,255.68 : 225,285.25 = 90,663.18 : x
  2. Step 2: Convert to fraction form
    163,255.68/225,285.25 = 90,663.18/x
  3. Step 3: Cross multiply
    163,255.68x = 225,285.25 × 90,663.18
  4. Step 4: Simplify right side
    163,255.68x = 20,425,077,172.10
  5. Step 5: Solve for x
    x = 20,425,077,172.10/163,255.68
  6. Step 6: Final answer
    x = 125,110.97

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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.