Home / 112,795.02-155,658.60-72,522

Finding the Fourth Proportional to 112,795.02, 155,658.60 and 72,522

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Solution

The fourth proportional to 112,795.02, 155,658.60 and 72,522 is: 100,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,795.02 : 155,658.60 = 72,522 : x
  2. Step 2: Convert to fraction form
    112,795.02/155,658.60 = 72,522/x
  3. Step 3: Cross multiply
    112,795.02x = 155,658.60 × 72,522
  4. Step 4: Simplify right side
    112,795.02x = 11,288,672,989.20
  5. Step 5: Solve for x
    x = 11,288,672,989.20/112,795.02
  6. Step 6: Final answer
    x = 100,081.31

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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.