Home / 145,784.20-218,676.30-52,277.80

Finding the Fourth Proportional to 145,784.20, 218,676.30 and 52,277.80

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Solution

The fourth proportional to 145,784.20, 218,676.30 and 52,277.80 is: 78,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,784.20 : 218,676.30 = 52,277.80 : x
  2. Step 2: Convert to fraction form
    145,784.20/218,676.30 = 52,277.80/x
  3. Step 3: Cross multiply
    145,784.20x = 218,676.30 × 52,277.80
  4. Step 4: Simplify right side
    145,784.20x = 11,431,915,876.14
  5. Step 5: Solve for x
    x = 11,431,915,876.14/145,784.20
  6. Step 6: Final answer
    x = 78,416.70

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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.