Home / 99,906.02-149,932.96-47,315.60

Finding the Fourth Proportional to 99,906.02, 149,932.96 and 47,315.60

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Solution

The fourth proportional to 99,906.02, 149,932.96 and 47,315.60 is: 71,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,906.02 : 149,932.96 = 47,315.60 : x
  2. Step 2: Convert to fraction form
    99,906.02/149,932.96 = 47,315.60/x
  3. Step 3: Cross multiply
    99,906.02x = 149,932.96 × 47,315.60
  4. Step 4: Simplify right side
    99,906.02x = 7,094,167,962.18
  5. Step 5: Solve for x
    x = 7,094,167,962.18/99,906.02
  6. Step 6: Final answer
    x = 71,008.41

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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.