Home / 113,108.62-169,404.56-53,985.81

Finding the Fourth Proportional to 113,108.62, 169,404.56 and 53,985.81

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Solution

The fourth proportional to 113,108.62, 169,404.56 and 53,985.81 is: 80,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,108.62 : 169,404.56 = 53,985.81 : x
  2. Step 2: Convert to fraction form
    113,108.62/169,404.56 = 53,985.81/x
  3. Step 3: Cross multiply
    113,108.62x = 169,404.56 × 53,985.81
  4. Step 4: Simplify right side
    113,108.62x = 9,145,442,665.19
  5. Step 5: Solve for x
    x = 9,145,442,665.19/113,108.62
  6. Step 6: Final answer
    x = 80,855.40

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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.