Home / 99,338.13-149,008.95-43,178.27

Finding the Fourth Proportional to 99,338.13, 149,008.95 and 43,178.27

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Solution

The fourth proportional to 99,338.13, 149,008.95 and 43,178.27 is: 64,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,338.13 : 149,008.95 = 43,178.27 : x
  2. Step 2: Convert to fraction form
    99,338.13/149,008.95 = 43,178.27/x
  3. Step 3: Cross multiply
    99,338.13x = 149,008.95 × 43,178.27
  4. Step 4: Simplify right side
    99,338.13x = 6,433,947,930.47
  5. Step 5: Solve for x
    x = 6,433,947,930.47/99,338.13
  6. Step 6: Final answer
    x = 64,768.16

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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.