Home / 100,820.56-151,253.34-30,705.28

Finding the Fourth Proportional to 100,820.56, 151,253.34 and 30,705.28

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Solution

The fourth proportional to 100,820.56, 151,253.34 and 30,705.28 is: 46,064.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,820.56 : 151,253.34 = 30,705.28 : x
  2. Step 2: Convert to fraction form
    100,820.56/151,253.34 = 30,705.28/x
  3. Step 3: Cross multiply
    100,820.56x = 151,253.34 × 30,705.28
  4. Step 4: Simplify right side
    100,820.56x = 4,644,276,155.64
  5. Step 5: Solve for x
    x = 4,644,276,155.64/100,820.56
  6. Step 6: Final answer
    x = 46,064.77

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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.