Home / 112,965.56-169,507.74-53,790.20

Finding the Fourth Proportional to 112,965.56, 169,507.74 and 53,790.20

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Solution

The fourth proportional to 112,965.56, 169,507.74 and 53,790.20 is: 80,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,965.56 : 169,507.74 = 53,790.20 : x
  2. Step 2: Convert to fraction form
    112,965.56/169,507.74 = 53,790.20/x
  3. Step 3: Cross multiply
    112,965.56x = 169,507.74 × 53,790.20
  4. Step 4: Simplify right side
    112,965.56x = 9,117,855,236.15
  5. Step 5: Solve for x
    x = 9,117,855,236.15/112,965.56
  6. Step 6: Final answer
    x = 80,713.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.