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Finding the Fourth Proportional to 134,430.60, 201,791.70 and 75,381.60

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Solution

The fourth proportional to 134,430.60, 201,791.70 and 75,381.60 is: 113,154.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,430.60 : 201,791.70 = 75,381.60 : x
  2. Step 2: Convert to fraction form
    134,430.60/201,791.70 = 75,381.60/x
  3. Step 3: Cross multiply
    134,430.60x = 201,791.70 × 75,381.60
  4. Step 4: Simplify right side
    134,430.60x = 15,211,381,212.72
  5. Step 5: Solve for x
    x = 15,211,381,212.72/134,430.60
  6. Step 6: Final answer
    x = 113,154.16

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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.