Home / 161,635.87-223,041.52-90,022.55

Finding the Fourth Proportional to 161,635.87, 223,041.52 and 90,022.55

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Solution

The fourth proportional to 161,635.87, 223,041.52 and 90,022.55 is: 124,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,635.87 : 223,041.52 = 90,022.55 : x
  2. Step 2: Convert to fraction form
    161,635.87/223,041.52 = 90,022.55/x
  3. Step 3: Cross multiply
    161,635.87x = 223,041.52 × 90,022.55
  4. Step 4: Simplify right side
    161,635.87x = 20,078,766,718.82
  5. Step 5: Solve for x
    x = 20,078,766,718.82/161,635.87
  6. Step 6: Final answer
    x = 124,222.22

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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.