Home / 126,929.60-190,226.40-67,637.60

Finding the Fourth Proportional to 126,929.60, 190,226.40 and 67,637.60

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Solution

The fourth proportional to 126,929.60, 190,226.40 and 67,637.60 is: 101,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,929.60 : 190,226.40 = 67,637.60 : x
  2. Step 2: Convert to fraction form
    126,929.60/190,226.40 = 67,637.60/x
  3. Step 3: Cross multiply
    126,929.60x = 190,226.40 × 67,637.60
  4. Step 4: Simplify right side
    126,929.60x = 12,866,457,152.64
  5. Step 5: Solve for x
    x = 12,866,457,152.64/126,929.60
  6. Step 6: Final answer
    x = 101,366.88

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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.