Home / 112,331.23-154,832.54-79,636.80

Finding the Fourth Proportional to 112,331.23, 154,832.54 and 79,636.80

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Solution

The fourth proportional to 112,331.23, 154,832.54 and 79,636.80 is: 109,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,331.23 : 154,832.54 = 79,636.80 : x
  2. Step 2: Convert to fraction form
    112,331.23/154,832.54 = 79,636.80/x
  3. Step 3: Cross multiply
    112,331.23x = 154,832.54 × 79,636.80
  4. Step 4: Simplify right side
    112,331.23x = 12,330,367,341.30
  5. Step 5: Solve for x
    x = 12,330,367,341.30/112,331.23
  6. Step 6: Final answer
    x = 109,767.94

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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.