Home / 161,125.02-222,346.35-89,509.55

Finding the Fourth Proportional to 161,125.02, 222,346.35 and 89,509.55

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Solution

The fourth proportional to 161,125.02, 222,346.35 and 89,509.55 is: 123,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,125.02 : 222,346.35 = 89,509.55 : x
  2. Step 2: Convert to fraction form
    161,125.02/222,346.35 = 89,509.55/x
  3. Step 3: Cross multiply
    161,125.02x = 222,346.35 × 89,509.55
  4. Step 4: Simplify right side
    161,125.02x = 19,902,120,620.91
  5. Step 5: Solve for x
    x = 19,902,120,620.91/161,125.02
  6. Step 6: Final answer
    x = 123,519.74

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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.