Home / 112,832.58-155,779.86-72,616.39

Finding the Fourth Proportional to 112,832.58, 155,779.86 and 72,616.39

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Solution

The fourth proportional to 112,832.58, 155,779.86 and 72,616.39 is: 100,256.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,832.58 : 155,779.86 = 72,616.39 : x
  2. Step 2: Convert to fraction form
    112,832.58/155,779.86 = 72,616.39/x
  3. Step 3: Cross multiply
    112,832.58x = 155,779.86 × 72,616.39
  4. Step 4: Simplify right side
    112,832.58x = 11,312,171,067.91
  5. Step 5: Solve for x
    x = 11,312,171,067.91/112,832.58
  6. Step 6: Final answer
    x = 100,256.25

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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.