Home / 156,243-215,616.18-84,623.22

Finding the Fourth Proportional to 156,243, 215,616.18 and 84,623.22

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Solution

The fourth proportional to 156,243, 215,616.18 and 84,623.22 is: 116,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,243 : 215,616.18 = 84,623.22 : x
  2. Step 2: Convert to fraction form
    156,243/215,616.18 = 84,623.22/x
  3. Step 3: Cross multiply
    156,243x = 215,616.18 × 84,623.22
  4. Step 4: Simplify right side
    156,243x = 18,246,135,435.70
  5. Step 5: Solve for x
    x = 18,246,135,435.70/156,243
  6. Step 6: Final answer
    x = 116,780.50

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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.