Home / 145,961.38-201,428.94-85,517.56

Finding the Fourth Proportional to 145,961.38, 201,428.94 and 85,517.56

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Solution

The fourth proportional to 145,961.38, 201,428.94 and 85,517.56 is: 118,015.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,961.38 : 201,428.94 = 85,517.56 : x
  2. Step 2: Convert to fraction form
    145,961.38/201,428.94 = 85,517.56/x
  3. Step 3: Cross multiply
    145,961.38x = 201,428.94 × 85,517.56
  4. Step 4: Simplify right side
    145,961.38x = 17,225,711,462.19
  5. Step 5: Solve for x
    x = 17,225,711,462.19/145,961.38
  6. Step 6: Final answer
    x = 118,015.54

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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.