Home / 159,319.05-219,834.56-91,323.51

Finding the Fourth Proportional to 159,319.05, 219,834.56 and 91,323.51

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Solution

The fourth proportional to 159,319.05, 219,834.56 and 91,323.51 is: 126,011.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,319.05 : 219,834.56 = 91,323.51 : x
  2. Step 2: Convert to fraction form
    159,319.05/219,834.56 = 91,323.51/x
  3. Step 3: Cross multiply
    159,319.05x = 219,834.56 × 91,323.51
  4. Step 4: Simplify right side
    159,319.05x = 20,076,063,181.89
  5. Step 5: Solve for x
    x = 20,076,063,181.89/159,319.05
  6. Step 6: Final answer
    x = 126,011.69

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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.