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Finding the Fourth Proportional to 139,534.60, 209,301.90 and 132,973.60

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Solution

The fourth proportional to 139,534.60, 209,301.90 and 132,973.60 is: 199,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,534.60 : 209,301.90 = 132,973.60 : x
  2. Step 2: Convert to fraction form
    139,534.60/209,301.90 = 132,973.60/x
  3. Step 3: Cross multiply
    139,534.60x = 209,301.90 × 132,973.60
  4. Step 4: Simplify right side
    139,534.60x = 27,831,627,129.84
  5. Step 5: Solve for x
    x = 27,831,627,129.84/139,534.60
  6. Step 6: Final answer
    x = 199,460.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.