Home / 100,678.50-151,032.33-30,557.88

Finding the Fourth Proportional to 100,678.50, 151,032.33 and 30,557.88

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Solution

The fourth proportional to 100,678.50, 151,032.33 and 30,557.88 is: 45,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,678.50 : 151,032.33 = 30,557.88 : x
  2. Step 2: Convert to fraction form
    100,678.50/151,032.33 = 30,557.88/x
  3. Step 3: Cross multiply
    100,678.50x = 151,032.33 × 30,557.88
  4. Step 4: Simplify right side
    100,678.50x = 4,615,227,816.26
  5. Step 5: Solve for x
    x = 4,615,227,816.26/100,678.50
  6. Step 6: Final answer
    x = 45,841.25

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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.