Home / 100,688.08-151,028.88-34,127.68

Finding the Fourth Proportional to 100,688.08, 151,028.88 and 34,127.68

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Solution

The fourth proportional to 100,688.08, 151,028.88 and 34,127.68 is: 51,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,688.08 : 151,028.88 = 34,127.68 : x
  2. Step 2: Convert to fraction form
    100,688.08/151,028.88 = 34,127.68/x
  3. Step 3: Cross multiply
    100,688.08x = 151,028.88 × 34,127.68
  4. Step 4: Simplify right side
    100,688.08x = 5,154,265,287.40
  5. Step 5: Solve for x
    x = 5,154,265,287.40/100,688.08
  6. Step 6: Final answer
    x = 51,190.42

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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.