Home / 121,899.50-168,225.90-68,184.35

Finding the Fourth Proportional to 121,899.50, 168,225.90 and 68,184.35

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Solution

The fourth proportional to 121,899.50, 168,225.90 and 68,184.35 is: 94,096.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,899.50 : 168,225.90 = 68,184.35 : x
  2. Step 2: Convert to fraction form
    121,899.50/168,225.90 = 68,184.35/x
  3. Step 3: Cross multiply
    121,899.50x = 168,225.90 × 68,184.35
  4. Step 4: Simplify right side
    121,899.50x = 11,470,372,803.54
  5. Step 5: Solve for x
    x = 11,470,372,803.54/121,899.50
  6. Step 6: Final answer
    x = 94,096.97

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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.