Home / 89,239.20-133,923.54-71,918.16

Finding the Fourth Proportional to 89,239.20, 133,923.54 and 71,918.16

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Solution

The fourth proportional to 89,239.20, 133,923.54 and 71,918.16 is: 107,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,239.20 : 133,923.54 = 71,918.16 : x
  2. Step 2: Convert to fraction form
    89,239.20/133,923.54 = 71,918.16/x
  3. Step 3: Cross multiply
    89,239.20x = 133,923.54 × 71,918.16
  4. Step 4: Simplify right side
    89,239.20x = 9,631,534,577.49
  5. Step 5: Solve for x
    x = 9,631,534,577.49/89,239.20
  6. Step 6: Final answer
    x = 107,929.41

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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.