Home / 112,145.32-154,756.19-63,753.59

Finding the Fourth Proportional to 112,145.32, 154,756.19 and 63,753.59

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Solution

The fourth proportional to 112,145.32, 154,756.19 and 63,753.59 is: 87,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,145.32 : 154,756.19 = 63,753.59 : x
  2. Step 2: Convert to fraction form
    112,145.32/154,756.19 = 63,753.59/x
  3. Step 3: Cross multiply
    112,145.32x = 154,756.19 × 63,753.59
  4. Step 4: Simplify right side
    112,145.32x = 9,866,262,687.22
  5. Step 5: Solve for x
    x = 9,866,262,687.22/112,145.32
  6. Step 6: Final answer
    x = 87,977.48

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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.