Home / 126,765.88-190,335.72-70,715.50

Finding the Fourth Proportional to 126,765.88, 190,335.72 and 70,715.50

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Solution

The fourth proportional to 126,765.88, 190,335.72 and 70,715.50 is: 106,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,765.88 : 190,335.72 = 70,715.50 : x
  2. Step 2: Convert to fraction form
    126,765.88/190,335.72 = 70,715.50/x
  3. Step 3: Cross multiply
    126,765.88x = 190,335.72 × 70,715.50
  4. Step 4: Simplify right side
    126,765.88x = 13,459,685,607.66
  5. Step 5: Solve for x
    x = 13,459,685,607.66/126,765.88
  6. Step 6: Final answer
    x = 106,177.51

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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.