Home / 100,921.56-151,381.10-30,801.06

Finding the Fourth Proportional to 100,921.56, 151,381.10 and 30,801.06

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Solution

The fourth proportional to 100,921.56, 151,381.10 and 30,801.06 is: 46,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,921.56 : 151,381.10 = 30,801.06 : x
  2. Step 2: Convert to fraction form
    100,921.56/151,381.10 = 30,801.06/x
  3. Step 3: Cross multiply
    100,921.56x = 151,381.10 × 30,801.06
  4. Step 4: Simplify right side
    100,921.56x = 4,662,698,343.97
  5. Step 5: Solve for x
    x = 4,662,698,343.97/100,921.56
  6. Step 6: Final answer
    x = 46,201.21

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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.