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Finding the Fourth Proportional to 113,467.40, 156,606.02 and 65,720.74

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Solution

The fourth proportional to 113,467.40, 156,606.02 and 65,720.74 is: 90,706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,467.40 : 156,606.02 = 65,720.74 : x
  2. Step 2: Convert to fraction form
    113,467.40/156,606.02 = 65,720.74/x
  3. Step 3: Cross multiply
    113,467.40x = 156,606.02 × 65,720.74
  4. Step 4: Simplify right side
    113,467.40x = 10,292,263,522.85
  5. Step 5: Solve for x
    x = 10,292,263,522.85/113,467.40
  6. Step 6: Final answer
    x = 90,706.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.