Home / 120,553.48-180,837.75-31,807.08

Finding the Fourth Proportional to 120,553.48, 180,837.75 and 31,807.08

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Solution

The fourth proportional to 120,553.48, 180,837.75 and 31,807.08 is: 47,712.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,553.48 : 180,837.75 = 31,807.08 : x
  2. Step 2: Convert to fraction form
    120,553.48/180,837.75 = 31,807.08/x
  3. Step 3: Cross multiply
    120,553.48x = 180,837.75 × 31,807.08
  4. Step 4: Simplify right side
    120,553.48x = 5,751,920,721.63
  5. Step 5: Solve for x
    x = 5,751,920,721.63/120,553.48
  6. Step 6: Final answer
    x = 47,712.61

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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.