Home / 158,731.68-219,037.92-87,100.32

Finding the Fourth Proportional to 158,731.68, 219,037.92 and 87,100.32

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Solution

The fourth proportional to 158,731.68, 219,037.92 and 87,100.32 is: 120,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,731.68 : 219,037.92 = 87,100.32 : x
  2. Step 2: Convert to fraction form
    158,731.68/219,037.92 = 87,100.32/x
  3. Step 3: Cross multiply
    158,731.68x = 219,037.92 × 87,100.32
  4. Step 4: Simplify right side
    158,731.68x = 19,078,272,924.13
  5. Step 5: Solve for x
    x = 19,078,272,924.13/158,731.68
  6. Step 6: Final answer
    x = 120,191.97

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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.