Home / 102,053.22-140,842.31-56,740.07

Finding the Fourth Proportional to 102,053.22, 140,842.31 and 56,740.07

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Solution

The fourth proportional to 102,053.22, 140,842.31 and 56,740.07 is: 78,306.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,053.22 : 140,842.31 = 56,740.07 : x
  2. Step 2: Convert to fraction form
    102,053.22/140,842.31 = 56,740.07/x
  3. Step 3: Cross multiply
    102,053.22x = 140,842.31 × 56,740.07
  4. Step 4: Simplify right side
    102,053.22x = 7,991,401,540.45
  5. Step 5: Solve for x
    x = 7,991,401,540.45/102,053.22
  6. Step 6: Final answer
    x = 78,306.22

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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.