Home / 118,330.36-163,254.06-75,911.80

Finding the Fourth Proportional to 118,330.36, 163,254.06 and 75,911.80

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Solution

The fourth proportional to 118,330.36, 163,254.06 and 75,911.80 is: 104,731.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,330.36 : 163,254.06 = 75,911.80 : x
  2. Step 2: Convert to fraction form
    118,330.36/163,254.06 = 75,911.80/x
  3. Step 3: Cross multiply
    118,330.36x = 163,254.06 × 75,911.80
  4. Step 4: Simplify right side
    118,330.36x = 12,392,909,551.91
  5. Step 5: Solve for x
    x = 12,392,909,551.91/118,330.36
  6. Step 6: Final answer
    x = 104,731.44

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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.