Home / 126,987.10-190,507.29-48,099.58

Finding the Fourth Proportional to 126,987.10, 190,507.29 and 48,099.58

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Solution

The fourth proportional to 126,987.10, 190,507.29 and 48,099.58 is: 72,159.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,987.10 : 190,507.29 = 48,099.58 : x
  2. Step 2: Convert to fraction form
    126,987.10/190,507.29 = 48,099.58/x
  3. Step 3: Cross multiply
    126,987.10x = 190,507.29 × 48,099.58
  4. Step 4: Simplify right side
    126,987.10x = 9,163,320,635.94
  5. Step 5: Solve for x
    x = 9,163,320,635.94/126,987.10
  6. Step 6: Final answer
    x = 72,159.46

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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.