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Finding the Fourth Proportional to 102,755.37, 141,710.25 and 85,584.75

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Solution

The fourth proportional to 102,755.37, 141,710.25 and 85,584.75 is: 118,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,755.37 : 141,710.25 = 85,584.75 : x
  2. Step 2: Convert to fraction form
    102,755.37/141,710.25 = 85,584.75/x
  3. Step 3: Cross multiply
    102,755.37x = 141,710.25 × 85,584.75
  4. Step 4: Simplify right side
    102,755.37x = 12,128,236,318.69
  5. Step 5: Solve for x
    x = 12,128,236,318.69/102,755.37
  6. Step 6: Final answer
    x = 118,030.19

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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.