Home / 99,470.21-149,206.89-55,377.23

Finding the Fourth Proportional to 99,470.21, 149,206.89 and 55,377.23

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Solution

The fourth proportional to 99,470.21, 149,206.89 and 55,377.23 is: 83,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,470.21 : 149,206.89 = 55,377.23 : x
  2. Step 2: Convert to fraction form
    99,470.21/149,206.89 = 55,377.23/x
  3. Step 3: Cross multiply
    99,470.21x = 149,206.89 × 55,377.23
  4. Step 4: Simplify right side
    99,470.21x = 8,262,663,519.08
  5. Step 5: Solve for x
    x = 8,262,663,519.08/99,470.21
  6. Step 6: Final answer
    x = 83,066.72

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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.