Home / 101,251.40-151,877.10-31,121.60

Finding the Fourth Proportional to 101,251.40, 151,877.10 and 31,121.60

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Solution

The fourth proportional to 101,251.40, 151,877.10 and 31,121.60 is: 46,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,251.40 : 151,877.10 = 31,121.60 : x
  2. Step 2: Convert to fraction form
    101,251.40/151,877.10 = 31,121.60/x
  3. Step 3: Cross multiply
    101,251.40x = 151,877.10 × 31,121.60
  4. Step 4: Simplify right side
    101,251.40x = 4,726,658,355.36
  5. Step 5: Solve for x
    x = 4,726,658,355.36/101,251.40
  6. Step 6: Final answer
    x = 46,682.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.