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Finding the Fourth Proportional to 121,518.36, 167,695.14 and 67,800.12

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Solution

The fourth proportional to 121,518.36, 167,695.14 and 67,800.12 is: 93,564.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,518.36 : 167,695.14 = 67,800.12 : x
  2. Step 2: Convert to fraction form
    121,518.36/167,695.14 = 67,800.12/x
  3. Step 3: Cross multiply
    121,518.36x = 167,695.14 × 67,800.12
  4. Step 4: Simplify right side
    121,518.36x = 11,369,750,615.42
  5. Step 5: Solve for x
    x = 11,369,750,615.42/121,518.36
  6. Step 6: Final answer
    x = 93,564.06

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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.