Home / 118,272-163,222.02-67,974.24

Finding the Fourth Proportional to 118,272, 163,222.02 and 67,974.24

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Solution

The fourth proportional to 118,272, 163,222.02 and 67,974.24 is: 93,808.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,272 : 163,222.02 = 67,974.24 : x
  2. Step 2: Convert to fraction form
    118,272/163,222.02 = 67,974.24/x
  3. Step 3: Cross multiply
    118,272x = 163,222.02 × 67,974.24
  4. Step 4: Simplify right side
    118,272x = 11,094,892,760.76
  5. Step 5: Solve for x
    x = 11,094,892,760.76/118,272
  6. Step 6: Final answer
    x = 93,808.28

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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.