Home / 158,850.72-219,217.32-87,235.92

Finding the Fourth Proportional to 158,850.72, 219,217.32 and 87,235.92

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Solution

The fourth proportional to 158,850.72, 219,217.32 and 87,235.92 is: 120,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,850.72 : 219,217.32 = 87,235.92 : x
  2. Step 2: Convert to fraction form
    158,850.72/219,217.32 = 87,235.92/x
  3. Step 3: Cross multiply
    158,850.72x = 219,217.32 × 87,235.92
  4. Step 4: Simplify right side
    158,850.72x = 19,123,624,590.13
  5. Step 5: Solve for x
    x = 19,123,624,590.13/158,850.72
  6. Step 6: Final answer
    x = 120,387.40

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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.