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Finding the Fourth Proportional to 121,697.06, 168,801.14 and 118,460.30

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Solution

The fourth proportional to 121,697.06, 168,801.14 and 118,460.30 is: 164,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,697.06 : 168,801.14 = 118,460.30 : x
  2. Step 2: Convert to fraction form
    121,697.06/168,801.14 = 118,460.30/x
  3. Step 3: Cross multiply
    121,697.06x = 168,801.14 × 118,460.30
  4. Step 4: Simplify right side
    121,697.06x = 19,996,233,684.74
  5. Step 5: Solve for x
    x = 19,996,233,684.74/121,697.06
  6. Step 6: Final answer
    x = 164,311.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.