Home / 215,931.56-323,834.70-82,802.12

Finding the Fourth Proportional to 215,931.56, 323,834.70 and 82,802.12

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Solution

The fourth proportional to 215,931.56, 323,834.70 and 82,802.12 is: 124,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,931.56 : 323,834.70 = 82,802.12 : x
  2. Step 2: Convert to fraction form
    215,931.56/323,834.70 = 82,802.12/x
  3. Step 3: Cross multiply
    215,931.56x = 323,834.70 × 82,802.12
  4. Step 4: Simplify right side
    215,931.56x = 26,814,199,689.56
  5. Step 5: Solve for x
    x = 26,814,199,689.56/215,931.56
  6. Step 6: Final answer
    x = 124,179.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.