Home / 156,049.40-215,348.18-84,429.40

Finding the Fourth Proportional to 156,049.40, 215,348.18 and 84,429.40

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Solution

The fourth proportional to 156,049.40, 215,348.18 and 84,429.40 is: 116,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,049.40 : 215,348.18 = 84,429.40 : x
  2. Step 2: Convert to fraction form
    156,049.40/215,348.18 = 84,429.40/x
  3. Step 3: Cross multiply
    156,049.40x = 215,348.18 × 84,429.40
  4. Step 4: Simplify right side
    156,049.40x = 18,181,717,628.49
  5. Step 5: Solve for x
    x = 18,181,717,628.49/156,049.40
  6. Step 6: Final answer
    x = 116,512.58

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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.