Home / 146,666.70-220,328.10-140,688.90

Finding the Fourth Proportional to 146,666.70, 220,328.10 and 140,688.90

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Solution

The fourth proportional to 146,666.70, 220,328.10 and 140,688.90 is: 211,348.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,666.70 : 220,328.10 = 140,688.90 : x
  2. Step 2: Convert to fraction form
    146,666.70/220,328.10 = 140,688.90/x
  3. Step 3: Cross multiply
    146,666.70x = 220,328.10 × 140,688.90
  4. Step 4: Simplify right side
    146,666.70x = 30,997,718,028.09
  5. Step 5: Solve for x
    x = 30,997,718,028.09/146,666.70
  6. Step 6: Final answer
    x = 211,348.03

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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.