Home / 158,771.68-219,092.88-87,140.32

Finding the Fourth Proportional to 158,771.68, 219,092.88 and 87,140.32

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Solution

The fourth proportional to 158,771.68, 219,092.88 and 87,140.32 is: 120,247.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,771.68 : 219,092.88 = 87,140.32 : x
  2. Step 2: Convert to fraction form
    158,771.68/219,092.88 = 87,140.32/x
  3. Step 3: Cross multiply
    158,771.68x = 219,092.88 × 87,140.32
  4. Step 4: Simplify right side
    158,771.68x = 19,091,823,672.92
  5. Step 5: Solve for x
    x = 19,091,823,672.92/158,771.68
  6. Step 6: Final answer
    x = 120,247.03

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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.