Home / 172,545.03-258,817.55-79,050.78

Finding the Fourth Proportional to 172,545.03, 258,817.55 and 79,050.78

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Solution

The fourth proportional to 172,545.03, 258,817.55 and 79,050.78 is: 118,576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,545.03 : 258,817.55 = 79,050.78 : x
  2. Step 2: Convert to fraction form
    172,545.03/258,817.55 = 79,050.78/x
  3. Step 3: Cross multiply
    172,545.03x = 258,817.55 × 79,050.78
  4. Step 4: Simplify right side
    172,545.03x = 20,459,728,809.94
  5. Step 5: Solve for x
    x = 20,459,728,809.94/172,545.03
  6. Step 6: Final answer
    x = 118,576.17

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1.5x scale

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.