Home / 111,403.47-153,734.07-63,653.73

Finding the Fourth Proportional to 111,403.47, 153,734.07 and 63,653.73

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Solution

The fourth proportional to 111,403.47, 153,734.07 and 63,653.73 is: 87,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,403.47 : 153,734.07 = 63,653.73 : x
  2. Step 2: Convert to fraction form
    111,403.47/153,734.07 = 63,653.73/x
  3. Step 3: Cross multiply
    111,403.47x = 153,734.07 × 63,653.73
  4. Step 4: Simplify right side
    111,403.47x = 9,785,746,983.58
  5. Step 5: Solve for x
    x = 9,785,746,983.58/111,403.47
  6. Step 6: Final answer
    x = 87,840.59

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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.