Home / 106,538.58-147,076.41-66,265.28

Finding the Fourth Proportional to 106,538.58, 147,076.41 and 66,265.28

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Solution

The fourth proportional to 106,538.58, 147,076.41 and 66,265.28 is: 91,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,538.58 : 147,076.41 = 66,265.28 : x
  2. Step 2: Convert to fraction form
    106,538.58/147,076.41 = 66,265.28/x
  3. Step 3: Cross multiply
    106,538.58x = 147,076.41 × 66,265.28
  4. Step 4: Simplify right side
    106,538.58x = 9,746,058,754.66
  5. Step 5: Solve for x
    x = 9,746,058,754.66/106,538.58
  6. Step 6: Final answer
    x = 91,479.15

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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.