Home / 145,740.20-218,610.30-52,255.40

Finding the Fourth Proportional to 145,740.20, 218,610.30 and 52,255.40

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Solution

The fourth proportional to 145,740.20, 218,610.30 and 52,255.40 is: 78,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,740.20 : 218,610.30 = 52,255.40 : x
  2. Step 2: Convert to fraction form
    145,740.20/218,610.30 = 52,255.40/x
  3. Step 3: Cross multiply
    145,740.20x = 218,610.30 × 52,255.40
  4. Step 4: Simplify right side
    145,740.20x = 11,423,568,670.62
  5. Step 5: Solve for x
    x = 11,423,568,670.62/145,740.20
  6. Step 6: Final answer
    x = 78,383.10

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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.