Home / 161,690.25-223,118.08-90,068.74

Finding the Fourth Proportional to 161,690.25, 223,118.08 and 90,068.74

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Solution

The fourth proportional to 161,690.25, 223,118.08 and 90,068.74 is: 124,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,690.25 : 223,118.08 = 90,068.74 : x
  2. Step 2: Convert to fraction form
    161,690.25/223,118.08 = 90,068.74/x
  3. Step 3: Cross multiply
    161,690.25x = 223,118.08 × 90,068.74
  4. Step 4: Simplify right side
    161,690.25x = 20,095,963,553.85
  5. Step 5: Solve for x
    x = 20,095,963,553.85/161,690.25
  6. Step 6: Final answer
    x = 124,286.80

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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.