Home / 117,790.16-162,610.64-90,872.24

Finding the Fourth Proportional to 117,790.16, 162,610.64 and 90,872.24

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Solution

The fourth proportional to 117,790.16, 162,610.64 and 90,872.24 is: 125,450.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,790.16 : 162,610.64 = 90,872.24 : x
  2. Step 2: Convert to fraction form
    117,790.16/162,610.64 = 90,872.24/x
  3. Step 3: Cross multiply
    117,790.16x = 162,610.64 × 90,872.24
  4. Step 4: Simplify right side
    117,790.16x = 14,776,793,104.63
  5. Step 5: Solve for x
    x = 14,776,793,104.63/117,790.16
  6. Step 6: Final answer
    x = 125,450.15

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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.