Home / 131,145.48-180,996.12-74,565.36

Finding the Fourth Proportional to 131,145.48, 180,996.12 and 74,565.36

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Solution

The fourth proportional to 131,145.48, 180,996.12 and 74,565.36 is: 102,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,145.48 : 180,996.12 = 74,565.36 : x
  2. Step 2: Convert to fraction form
    131,145.48/180,996.12 = 74,565.36/x
  3. Step 3: Cross multiply
    131,145.48x = 180,996.12 × 74,565.36
  4. Step 4: Simplify right side
    131,145.48x = 13,496,040,846.40
  5. Step 5: Solve for x
    x = 13,496,040,846.40/131,145.48
  6. Step 6: Final answer
    x = 102,908.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.