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Finding the Fourth Proportional to 121,394.70, 167,495.85 and 73,646.82

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Solution

The fourth proportional to 121,394.70, 167,495.85 and 73,646.82 is: 101,615.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,394.70 : 167,495.85 = 73,646.82 : x
  2. Step 2: Convert to fraction form
    121,394.70/167,495.85 = 73,646.82/x
  3. Step 3: Cross multiply
    121,394.70x = 167,495.85 × 73,646.82
  4. Step 4: Simplify right side
    121,394.70x = 12,335,536,715.70
  5. Step 5: Solve for x
    x = 12,335,536,715.70/121,394.70
  6. Step 6: Final answer
    x = 101,615.12

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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.