Home / 99,386.40-149,127.40-49,470.84

Finding the Fourth Proportional to 99,386.40, 149,127.40 and 49,470.84

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Solution

The fourth proportional to 99,386.40, 149,127.40 and 49,470.84 is: 74,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,386.40 : 149,127.40 = 49,470.84 : x
  2. Step 2: Convert to fraction form
    99,386.40/149,127.40 = 49,470.84/x
  3. Step 3: Cross multiply
    99,386.40x = 149,127.40 × 49,470.84
  4. Step 4: Simplify right side
    99,386.40x = 7,377,457,745.02
  5. Step 5: Solve for x
    x = 7,377,457,745.02/99,386.40
  6. Step 6: Final answer
    x = 74,230.05

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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.