Home / 120,724.28-181,090.23-57,551.30

Finding the Fourth Proportional to 120,724.28, 181,090.23 and 57,551.30

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Solution

The fourth proportional to 120,724.28, 181,090.23 and 57,551.30 is: 86,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.28 : 181,090.23 = 57,551.30 : x
  2. Step 2: Convert to fraction form
    120,724.28/181,090.23 = 57,551.30/x
  3. Step 3: Cross multiply
    120,724.28x = 181,090.23 × 57,551.30
  4. Step 4: Simplify right side
    120,724.28x = 10,421,978,153.80
  5. Step 5: Solve for x
    x = 10,421,978,153.80/120,724.28
  6. Step 6: Final answer
    x = 86,328.77

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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.