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Finding the Fourth Proportional to 121,774.35, 168,041.88 and 68,048.67

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Solution

The fourth proportional to 121,774.35, 168,041.88 and 68,048.67 is: 93,903.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,774.35 : 168,041.88 = 68,048.67 : x
  2. Step 2: Convert to fraction form
    121,774.35/168,041.88 = 68,048.67/x
  3. Step 3: Cross multiply
    121,774.35x = 168,041.88 × 68,048.67
  4. Step 4: Simplify right side
    121,774.35x = 11,435,026,438.30
  5. Step 5: Solve for x
    x = 11,435,026,438.30/121,774.35
  6. Step 6: Final answer
    x = 93,903.41

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1.5x scale

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.