Home / 121,204.76-181,364.21-71,308.35

Finding the Fourth Proportional to 121,204.76, 181,364.21 and 71,308.35

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Solution

The fourth proportional to 121,204.76, 181,364.21 and 71,308.35 is: 106,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,204.76 : 181,364.21 = 71,308.35 : x
  2. Step 2: Convert to fraction form
    121,204.76/181,364.21 = 71,308.35/x
  3. Step 3: Cross multiply
    121,204.76x = 181,364.21 × 71,308.35
  4. Step 4: Simplify right side
    121,204.76x = 12,932,782,876.13
  5. Step 5: Solve for x
    x = 12,932,782,876.13/121,204.76
  6. Step 6: Final answer
    x = 106,701.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.