Home / 99,721.02-149,646.33-53,006.70

Finding the Fourth Proportional to 99,721.02, 149,646.33 and 53,006.70

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Solution

The fourth proportional to 99,721.02, 149,646.33 and 53,006.70 is: 79,544.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,721.02 : 149,646.33 = 53,006.70 : x
  2. Step 2: Convert to fraction form
    99,721.02/149,646.33 = 53,006.70/x
  3. Step 3: Cross multiply
    99,721.02x = 149,646.33 × 53,006.70
  4. Step 4: Simplify right side
    99,721.02x = 7,932,258,120.41
  5. Step 5: Solve for x
    x = 7,932,258,120.41/99,721.02
  6. Step 6: Final answer
    x = 79,544.49

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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.