Home / 112,218.12-154,866.99-64,474.56

Finding the Fourth Proportional to 112,218.12, 154,866.99 and 64,474.56

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Solution

The fourth proportional to 112,218.12, 154,866.99 and 64,474.56 is: 88,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.12 : 154,866.99 = 64,474.56 : x
  2. Step 2: Convert to fraction form
    112,218.12/154,866.99 = 64,474.56/x
  3. Step 3: Cross multiply
    112,218.12x = 154,866.99 × 64,474.56
  4. Step 4: Simplify right side
    112,218.12x = 9,984,981,038.77
  5. Step 5: Solve for x
    x = 9,984,981,038.77/112,218.12
  6. Step 6: Final answer
    x = 88,978.33

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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.