Home / 111,152.12-153,388.49-63,406.26

Finding the Fourth Proportional to 111,152.12, 153,388.49 and 63,406.26

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Solution

The fourth proportional to 111,152.12, 153,388.49 and 63,406.26 is: 87,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,152.12 : 153,388.49 = 63,406.26 : x
  2. Step 2: Convert to fraction form
    111,152.12/153,388.49 = 63,406.26/x
  3. Step 3: Cross multiply
    111,152.12x = 153,388.49 × 63,406.26
  4. Step 4: Simplify right side
    111,152.12x = 9,725,790,160.92
  5. Step 5: Solve for x
    x = 9,725,790,160.92/111,152.12
  6. Step 6: Final answer
    x = 87,499.82

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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.