Home / 120,935.48-181,464.66-54,362.20

Finding the Fourth Proportional to 120,935.48, 181,464.66 and 54,362.20

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Solution

The fourth proportional to 120,935.48, 181,464.66 and 54,362.20 is: 81,570.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,935.48 : 181,464.66 = 54,362.20 : x
  2. Step 2: Convert to fraction form
    120,935.48/181,464.66 = 54,362.20/x
  3. Step 3: Cross multiply
    120,935.48x = 181,464.66 × 54,362.20
  4. Step 4: Simplify right side
    120,935.48x = 9,864,818,139.85
  5. Step 5: Solve for x
    x = 9,864,818,139.85/120,935.48
  6. Step 6: Final answer
    x = 81,570.92

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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.