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Finding the Fourth Proportional to 161,275.90, 222,574.20 and 89,662.59

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Solution

The fourth proportional to 161,275.90, 222,574.20 and 89,662.59 is: 123,741.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,275.90 : 222,574.20 = 89,662.59 : x
  2. Step 2: Convert to fraction form
    161,275.90/222,574.20 = 89,662.59/x
  3. Step 3: Cross multiply
    161,275.90x = 222,574.20 × 89,662.59
  4. Step 4: Simplify right side
    161,275.90x = 19,956,579,239.18
  5. Step 5: Solve for x
    x = 19,956,579,239.18/161,275.90
  6. Step 6: Final answer
    x = 123,741.86

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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.