Home / 210,009.20-315,013.80-60,236.15

Finding the Fourth Proportional to 210,009.20, 315,013.80 and 60,236.15

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Solution

The fourth proportional to 210,009.20, 315,013.80 and 60,236.15 is: 90,354.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,009.20 : 315,013.80 = 60,236.15 : x
  2. Step 2: Convert to fraction form
    210,009.20/315,013.80 = 60,236.15/x
  3. Step 3: Cross multiply
    210,009.20x = 315,013.80 × 60,236.15
  4. Step 4: Simplify right side
    210,009.20x = 18,975,218,508.87
  5. Step 5: Solve for x
    x = 18,975,218,508.87/210,009.20
  6. Step 6: Final answer
    x = 90,354.23

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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.