Home / 156,437.30-215,884.50-84,818.42

Finding the Fourth Proportional to 156,437.30, 215,884.50 and 84,818.42

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Solution

The fourth proportional to 156,437.30, 215,884.50 and 84,818.42 is: 117,049.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,437.30 : 215,884.50 = 84,818.42 : x
  2. Step 2: Convert to fraction form
    156,437.30/215,884.50 = 84,818.42/x
  3. Step 3: Cross multiply
    156,437.30x = 215,884.50 × 84,818.42
  4. Step 4: Simplify right side
    156,437.30x = 18,310,982,192.49
  5. Step 5: Solve for x
    x = 18,310,982,192.49/156,437.30
  6. Step 6: Final answer
    x = 117,049.98

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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.