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Finding the Fourth Proportional to 121,907.57, 168,266.25 and 70,930.14

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Solution

The fourth proportional to 121,907.57, 168,266.25 and 70,930.14 is: 97,903.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,907.57 : 168,266.25 = 70,930.14 : x
  2. Step 2: Convert to fraction form
    121,907.57/168,266.25 = 70,930.14/x
  3. Step 3: Cross multiply
    121,907.57x = 168,266.25 × 70,930.14
  4. Step 4: Simplify right side
    121,907.57x = 11,935,149,630.39
  5. Step 5: Solve for x
    x = 11,935,149,630.39/121,907.57
  6. Step 6: Final answer
    x = 97,903.27

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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.