Home / 215,902.32-323,533.63-87,662.66

Finding the Fourth Proportional to 215,902.32, 323,533.63 and 87,662.66

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Solution

The fourth proportional to 215,902.32, 323,533.63 and 87,662.66 is: 131,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,902.32 : 323,533.63 = 87,662.66 : x
  2. Step 2: Convert to fraction form
    215,902.32/323,533.63 = 87,662.66/x
  3. Step 3: Cross multiply
    215,902.32x = 323,533.63 × 87,662.66
  4. Step 4: Simplify right side
    215,902.32x = 28,361,818,605.26
  5. Step 5: Solve for x
    x = 28,361,818,605.26/215,902.32
  6. Step 6: Final answer
    x = 131,364.12

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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.