Home / 163,272.55-225,295.70-90,665.57

Finding the Fourth Proportional to 163,272.55, 225,295.70 and 90,665.57

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Solution

The fourth proportional to 163,272.55, 225,295.70 and 90,665.57 is: 125,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,272.55 : 225,295.70 = 90,665.57 : x
  2. Step 2: Convert to fraction form
    163,272.55/225,295.70 = 90,665.57/x
  3. Step 3: Cross multiply
    163,272.55x = 225,295.70 × 90,665.57
  4. Step 4: Simplify right side
    163,272.55x = 20,426,563,059.05
  5. Step 5: Solve for x
    x = 20,426,563,059.05/163,272.55
  6. Step 6: Final answer
    x = 125,107.15

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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.