Home / 210,485.13-315,507.17-98,072.64

Finding the Fourth Proportional to 210,485.13, 315,507.17 and 98,072.64

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Solution

The fourth proportional to 210,485.13, 315,507.17 and 98,072.64 is: 147,006.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,485.13 : 315,507.17 = 98,072.64 : x
  2. Step 2: Convert to fraction form
    210,485.13/315,507.17 = 98,072.64/x
  3. Step 3: Cross multiply
    210,485.13x = 315,507.17 × 98,072.64
  4. Step 4: Simplify right side
    210,485.13x = 30,942,620,610.47
  5. Step 5: Solve for x
    x = 30,942,620,610.47/210,485.13
  6. Step 6: Final answer
    x = 147,006.21

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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.