Home / 156,068.36-215,372.72-84,446.80

Finding the Fourth Proportional to 156,068.36, 215,372.72 and 84,446.80

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Solution

The fourth proportional to 156,068.36, 215,372.72 and 84,446.80 is: 116,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,068.36 : 215,372.72 = 84,446.80 : x
  2. Step 2: Convert to fraction form
    156,068.36/215,372.72 = 84,446.80/x
  3. Step 3: Cross multiply
    156,068.36x = 215,372.72 × 84,446.80
  4. Step 4: Simplify right side
    156,068.36x = 18,187,537,011.30
  5. Step 5: Solve for x
    x = 18,187,537,011.30/156,068.36
  6. Step 6: Final answer
    x = 116,535.71

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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.