Home / 159,048.38-219,487.22-91,066.40

Finding the Fourth Proportional to 159,048.38, 219,487.22 and 91,066.40

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Solution

The fourth proportional to 159,048.38, 219,487.22 and 91,066.40 is: 125,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,048.38 : 219,487.22 = 91,066.40 : x
  2. Step 2: Convert to fraction form
    159,048.38/219,487.22 = 91,066.40/x
  3. Step 3: Cross multiply
    159,048.38x = 219,487.22 × 91,066.40
  4. Step 4: Simplify right side
    159,048.38x = 19,987,910,971.41
  5. Step 5: Solve for x
    x = 19,987,910,971.41/159,048.38
  6. Step 6: Final answer
    x = 125,671.89

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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.