Home / 158,779.68-219,103.92-87,148.32

Finding the Fourth Proportional to 158,779.68, 219,103.92 and 87,148.32

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Solution

The fourth proportional to 158,779.68, 219,103.92 and 87,148.32 is: 120,258.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,779.68 : 219,103.92 = 87,148.32 : x
  2. Step 2: Convert to fraction form
    158,779.68/219,103.92 = 87,148.32/x
  3. Step 3: Cross multiply
    158,779.68x = 219,103.92 × 87,148.32
  4. Step 4: Simplify right side
    158,779.68x = 19,094,538,533.41
  5. Step 5: Solve for x
    x = 19,094,538,533.41/158,779.68
  6. Step 6: Final answer
    x = 120,258.07

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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.