Home / 158,941.54-219,351.65-90,979.86

Finding the Fourth Proportional to 158,941.54, 219,351.65 and 90,979.86

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Solution

The fourth proportional to 158,941.54, 219,351.65 and 90,979.86 is: 125,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,941.54 : 219,351.65 = 90,979.86 : x
  2. Step 2: Convert to fraction form
    158,941.54/219,351.65 = 90,979.86/x
  3. Step 3: Cross multiply
    158,941.54x = 219,351.65 × 90,979.86
  4. Step 4: Simplify right side
    158,941.54x = 19,956,581,541.59
  5. Step 5: Solve for x
    x = 19,956,581,541.59/158,941.54
  6. Step 6: Final answer
    x = 125,559.26

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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.