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Finding the Fourth Proportional to 121,452.21, 167,604.35 and 67,740.71

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Solution

The fourth proportional to 121,452.21, 167,604.35 and 67,740.71 is: 93,482.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,452.21 : 167,604.35 = 67,740.71 : x
  2. Step 2: Convert to fraction form
    121,452.21/167,604.35 = 67,740.71/x
  3. Step 3: Cross multiply
    121,452.21x = 167,604.35 × 67,740.71
  4. Step 4: Simplify right side
    121,452.21x = 11,353,636,491.36
  5. Step 5: Solve for x
    x = 11,353,636,491.36/121,452.21
  6. Step 6: Final answer
    x = 93,482.34

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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.