Home / 210,160.30-314,722.05-139,657.90

Finding the Fourth Proportional to 210,160.30, 314,722.05 and 139,657.90

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Solution

The fourth proportional to 210,160.30, 314,722.05 and 139,657.90 is: 209,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,160.30 : 314,722.05 = 139,657.90 : x
  2. Step 2: Convert to fraction form
    210,160.30/314,722.05 = 139,657.90/x
  3. Step 3: Cross multiply
    210,160.30x = 314,722.05 × 139,657.90
  4. Step 4: Simplify right side
    210,160.30x = 43,953,420,586.70
  5. Step 5: Solve for x
    x = 43,953,420,586.70/210,160.30
  6. Step 6: Final answer
    x = 209,142.36

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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.