Home / 112,020.96-154,376.24-80,134.50

Finding the Fourth Proportional to 112,020.96, 154,376.24 and 80,134.50

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Solution

The fourth proportional to 112,020.96, 154,376.24 and 80,134.50 is: 110,433.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,020.96 : 154,376.24 = 80,134.50 : x
  2. Step 2: Convert to fraction form
    112,020.96/154,376.24 = 80,134.50/x
  3. Step 3: Cross multiply
    112,020.96x = 154,376.24 × 80,134.50
  4. Step 4: Simplify right side
    112,020.96x = 12,370,862,804.28
  5. Step 5: Solve for x
    x = 12,370,862,804.28/112,020.96
  6. Step 6: Final answer
    x = 110,433.47

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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.