Home / 112,023.55-154,488.62-81,760.96

Finding the Fourth Proportional to 112,023.55, 154,488.62 and 81,760.96

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Solution

The fourth proportional to 112,023.55, 154,488.62 and 81,760.96 is: 112,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,023.55 : 154,488.62 = 81,760.96 : x
  2. Step 2: Convert to fraction form
    112,023.55/154,488.62 = 81,760.96/x
  3. Step 3: Cross multiply
    112,023.55x = 154,488.62 × 81,760.96
  4. Step 4: Simplify right side
    112,023.55x = 12,631,136,699.03
  5. Step 5: Solve for x
    x = 12,631,136,699.03/112,023.55
  6. Step 6: Final answer
    x = 112,754.30

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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.