Home / 126,840.60-175,041.31-76,529.88

Finding the Fourth Proportional to 126,840.60, 175,041.31 and 76,529.88

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Solution

The fourth proportional to 126,840.60, 175,041.31 and 76,529.88 is: 105,612.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,840.60 : 175,041.31 = 76,529.88 : x
  2. Step 2: Convert to fraction form
    126,840.60/175,041.31 = 76,529.88/x
  3. Step 3: Cross multiply
    126,840.60x = 175,041.31 × 76,529.88
  4. Step 4: Simplify right side
    126,840.60x = 13,395,889,382.81
  5. Step 5: Solve for x
    x = 13,395,889,382.81/126,840.60
  6. Step 6: Final answer
    x = 105,612.00

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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.