Home / 161,320.20-222,621.12-89,695.94

Finding the Fourth Proportional to 161,320.20, 222,621.12 and 89,695.94

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Solution

The fourth proportional to 161,320.20, 222,621.12 and 89,695.94 is: 123,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,320.20 : 222,621.12 = 89,695.94 : x
  2. Step 2: Convert to fraction form
    161,320.20/222,621.12 = 89,695.94/x
  3. Step 3: Cross multiply
    161,320.20x = 222,621.12 × 89,695.94
  4. Step 4: Simplify right side
    161,320.20x = 19,968,210,622.25
  5. Step 5: Solve for x
    x = 19,968,210,622.25/161,320.20
  6. Step 6: Final answer
    x = 123,779.98

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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.