Home / 163,505.16-225,643.06-91,886.60

Finding the Fourth Proportional to 163,505.16, 225,643.06 and 91,886.60

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Solution

The fourth proportional to 163,505.16, 225,643.06 and 91,886.60 is: 126,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,505.16 : 225,643.06 = 91,886.60 : x
  2. Step 2: Convert to fraction form
    163,505.16/225,643.06 = 91,886.60/x
  3. Step 3: Cross multiply
    163,505.16x = 225,643.06 × 91,886.60
  4. Step 4: Simplify right side
    163,505.16x = 20,733,573,597.00
  5. Step 5: Solve for x
    x = 20,733,573,597.00/163,505.16
  6. Step 6: Final answer
    x = 126,806.85

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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.