Home / 102,500.40-141,240.60-75,600.30

Finding the Fourth Proportional to 102,500.40, 141,240.60 and 75,600.30

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Solution

The fourth proportional to 102,500.40, 141,240.60 and 75,600.30 is: 104,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,500.40 : 141,240.60 = 75,600.30 : x
  2. Step 2: Convert to fraction form
    102,500.40/141,240.60 = 75,600.30/x
  3. Step 3: Cross multiply
    102,500.40x = 141,240.60 × 75,600.30
  4. Step 4: Simplify right side
    102,500.40x = 10,677,831,732.18
  5. Step 5: Solve for x
    x = 10,677,831,732.18/102,500.40
  6. Step 6: Final answer
    x = 104,173.56

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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.