Home / 113,117.37-156,084.60-65,361.45

Finding the Fourth Proportional to 113,117.37, 156,084.60 and 65,361.45

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Solution

The fourth proportional to 113,117.37, 156,084.60 and 65,361.45 is: 90,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,117.37 : 156,084.60 = 65,361.45 : x
  2. Step 2: Convert to fraction form
    113,117.37/156,084.60 = 65,361.45/x
  3. Step 3: Cross multiply
    113,117.37x = 156,084.60 × 65,361.45
  4. Step 4: Simplify right side
    113,117.37x = 10,201,915,778.67
  5. Step 5: Solve for x
    x = 10,201,915,778.67/113,117.37
  6. Step 6: Final answer
    x = 90,188.76

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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.