Home / 161,830.41-223,221.74-107,381.40

Finding the Fourth Proportional to 161,830.41, 223,221.74 and 107,381.40

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Solution

The fourth proportional to 161,830.41, 223,221.74 and 107,381.40 is: 148,117.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,830.41 : 223,221.74 = 107,381.40 : x
  2. Step 2: Convert to fraction form
    161,830.41/223,221.74 = 107,381.40/x
  3. Step 3: Cross multiply
    161,830.41x = 223,221.74 × 107,381.40
  4. Step 4: Simplify right side
    161,830.41x = 23,969,862,414.73
  5. Step 5: Solve for x
    x = 23,969,862,414.73/161,830.41
  6. Step 6: Final answer
    x = 148,117.17

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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.