Home / 164,864.40-247,223.70-76,072.20

Finding the Fourth Proportional to 164,864.40, 247,223.70 and 76,072.20

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Solution

The fourth proportional to 164,864.40, 247,223.70 and 76,072.20 is: 114,074.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,864.40 : 247,223.70 = 76,072.20 : x
  2. Step 2: Convert to fraction form
    164,864.40/247,223.70 = 76,072.20/x
  3. Step 3: Cross multiply
    164,864.40x = 247,223.70 × 76,072.20
  4. Step 4: Simplify right side
    164,864.40x = 18,806,850,751.14
  5. Step 5: Solve for x
    x = 18,806,850,751.14/164,864.40
  6. Step 6: Final answer
    x = 114,074.66

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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.