Home / 215,838.04-323,559.84-75,520.12

Finding the Fourth Proportional to 215,838.04, 323,559.84 and 75,520.12

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Solution

The fourth proportional to 215,838.04, 323,559.84 and 75,520.12 is: 113,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,838.04 : 323,559.84 = 75,520.12 : x
  2. Step 2: Convert to fraction form
    215,838.04/323,559.84 = 75,520.12/x
  3. Step 3: Cross multiply
    215,838.04x = 323,559.84 × 75,520.12
  4. Step 4: Simplify right side
    215,838.04x = 24,435,277,943.98
  5. Step 5: Solve for x
    x = 24,435,277,943.98/215,838.04
  6. Step 6: Final answer
    x = 113,211.17

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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.