Home / 151,099.40-208,512.80-83,116.41

Finding the Fourth Proportional to 151,099.40, 208,512.80 and 83,116.41

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Solution

The fourth proportional to 151,099.40, 208,512.80 and 83,116.41 is: 114,698.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,099.40 : 208,512.80 = 83,116.41 : x
  2. Step 2: Convert to fraction form
    151,099.40/208,512.80 = 83,116.41/x
  3. Step 3: Cross multiply
    151,099.40x = 208,512.80 × 83,116.41
  4. Step 4: Simplify right side
    151,099.40x = 17,330,834,959.47
  5. Step 5: Solve for x
    x = 17,330,834,959.47/151,099.40
  6. Step 6: Final answer
    x = 114,698.24

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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.