Home / 102,049.10-140,830.80-61,770.23

Finding the Fourth Proportional to 102,049.10, 140,830.80 and 61,770.23

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Solution

The fourth proportional to 102,049.10, 140,830.80 and 61,770.23 is: 85,244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,049.10 : 140,830.80 = 61,770.23 : x
  2. Step 2: Convert to fraction form
    102,049.10/140,830.80 = 61,770.23/x
  3. Step 3: Cross multiply
    102,049.10x = 140,830.80 × 61,770.23
  4. Step 4: Simplify right side
    102,049.10x = 8,699,150,846.86
  5. Step 5: Solve for x
    x = 8,699,150,846.86/102,049.10
  6. Step 6: Final answer
    x = 85,244.76

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1.5x scale

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.