Home / 163,748.84-225,971.80-91,150.58

Finding the Fourth Proportional to 163,748.84, 225,971.80 and 91,150.58

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Solution

The fourth proportional to 163,748.84, 225,971.80 and 91,150.58 is: 125,786.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,748.84 : 225,971.80 = 91,150.58 : x
  2. Step 2: Convert to fraction form
    163,748.84/225,971.80 = 91,150.58/x
  3. Step 3: Cross multiply
    163,748.84x = 225,971.80 × 91,150.58
  4. Step 4: Simplify right side
    163,748.84x = 20,597,459,275.91
  5. Step 5: Solve for x
    x = 20,597,459,275.91/163,748.84
  6. Step 6: Final answer
    x = 125,786.91

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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.