Home / 101,471.16-139,915.62-75,895.55

Finding the Fourth Proportional to 101,471.16, 139,915.62 and 75,895.55

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Solution

The fourth proportional to 101,471.16, 139,915.62 and 75,895.55 is: 104,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,471.16 : 139,915.62 = 75,895.55 : x
  2. Step 2: Convert to fraction form
    101,471.16/139,915.62 = 75,895.55/x
  3. Step 3: Cross multiply
    101,471.16x = 139,915.62 × 75,895.55
  4. Step 4: Simplify right side
    101,471.16x = 10,618,972,758.60
  5. Step 5: Solve for x
    x = 10,618,972,758.60/101,471.16
  6. Step 6: Final answer
    x = 104,650.15

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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.