Home / 121,764.55-168,031.83-68,050

Finding the Fourth Proportional to 121,764.55, 168,031.83 and 68,050

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Solution

The fourth proportional to 121,764.55, 168,031.83 and 68,050 is: 93,907.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,764.55 : 168,031.83 = 68,050 : x
  2. Step 2: Convert to fraction form
    121,764.55/168,031.83 = 68,050/x
  3. Step 3: Cross multiply
    121,764.55x = 168,031.83 × 68,050
  4. Step 4: Simplify right side
    121,764.55x = 11,434,566,031.50
  5. Step 5: Solve for x
    x = 11,434,566,031.50/121,764.55
  6. Step 6: Final answer
    x = 93,907.18

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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.