Home / 126,636.66-189,955.34-51,756.81

Finding the Fourth Proportional to 126,636.66, 189,955.34 and 51,756.81

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Solution

The fourth proportional to 126,636.66, 189,955.34 and 51,756.81 is: 77,635.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,636.66 : 189,955.34 = 51,756.81 : x
  2. Step 2: Convert to fraction form
    126,636.66/189,955.34 = 51,756.81/x
  3. Step 3: Cross multiply
    126,636.66x = 189,955.34 × 51,756.81
  4. Step 4: Simplify right side
    126,636.66x = 9,831,482,182.08
  5. Step 5: Solve for x
    x = 9,831,482,182.08/126,636.66
  6. Step 6: Final answer
    x = 77,635.36

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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.