Home / 185,355.22-256,002.78-121,975.96

Finding the Fourth Proportional to 185,355.22, 256,002.78 and 121,975.96

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Solution

The fourth proportional to 185,355.22, 256,002.78 and 121,975.96 is: 168,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,355.22 : 256,002.78 = 121,975.96 : x
  2. Step 2: Convert to fraction form
    185,355.22/256,002.78 = 121,975.96/x
  3. Step 3: Cross multiply
    185,355.22x = 256,002.78 × 121,975.96
  4. Step 4: Simplify right side
    185,355.22x = 31,226,184,853.17
  5. Step 5: Solve for x
    x = 31,226,184,853.17/185,355.22
  6. Step 6: Final answer
    x = 168,466.71

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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.