Home / 102,048.18-140,836.11-61,771.98

Finding the Fourth Proportional to 102,048.18, 140,836.11 and 61,771.98

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Solution

The fourth proportional to 102,048.18, 140,836.11 and 61,771.98 is: 85,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,048.18 : 140,836.11 = 61,771.98 : x
  2. Step 2: Convert to fraction form
    102,048.18/140,836.11 = 61,771.98/x
  3. Step 3: Cross multiply
    102,048.18x = 140,836.11 × 61,771.98
  4. Step 4: Simplify right side
    102,048.18x = 8,699,725,370.20
  5. Step 5: Solve for x
    x = 8,699,725,370.20/102,048.18
  6. Step 6: Final answer
    x = 85,251.16

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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.