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Finding the Fourth Proportional to 112,907.59, 169,361.69 and 38,080.30

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Solution

The fourth proportional to 112,907.59, 169,361.69 and 38,080.30 is: 57,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,907.59 : 169,361.69 = 38,080.30 : x
  2. Step 2: Convert to fraction form
    112,907.59/169,361.69 = 38,080.30/x
  3. Step 3: Cross multiply
    112,907.59x = 169,361.69 × 38,080.30
  4. Step 4: Simplify right side
    112,907.59x = 6,449,343,963.71
  5. Step 5: Solve for x
    x = 6,449,343,963.71/112,907.59
  6. Step 6: Final answer
    x = 57,120.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.