Home / 145,165.88-217,748.82-39,984.86

Finding the Fourth Proportional to 145,165.88, 217,748.82 and 39,984.86

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Solution

The fourth proportional to 145,165.88, 217,748.82 and 39,984.86 is: 59,977.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,165.88 : 217,748.82 = 39,984.86 : x
  2. Step 2: Convert to fraction form
    145,165.88/217,748.82 = 39,984.86/x
  3. Step 3: Cross multiply
    145,165.88x = 217,748.82 × 39,984.86
  4. Step 4: Simplify right side
    145,165.88x = 8,706,654,994.12
  5. Step 5: Solve for x
    x = 8,706,654,994.12/145,165.88
  6. Step 6: Final answer
    x = 59,977.28

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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.