Home / 126,889.88-190,303.63-55,830.36

Finding the Fourth Proportional to 126,889.88, 190,303.63 and 55,830.36

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Solution

The fourth proportional to 126,889.88, 190,303.63 and 55,830.36 is: 83,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,889.88 : 190,303.63 = 55,830.36 : x
  2. Step 2: Convert to fraction form
    126,889.88/190,303.63 = 55,830.36/x
  3. Step 3: Cross multiply
    126,889.88x = 190,303.63 × 55,830.36
  4. Step 4: Simplify right side
    126,889.88x = 10,624,720,746.27
  5. Step 5: Solve for x
    x = 10,624,720,746.27/126,889.88
  6. Step 6: Final answer
    x = 83,731.82

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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.