Home / 207,360.72-311,030.10-102,144.14

Finding the Fourth Proportional to 207,360.72, 311,030.10 and 102,144.14

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Solution

The fourth proportional to 207,360.72, 311,030.10 and 102,144.14 is: 153,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,360.72 : 311,030.10 = 102,144.14 : x
  2. Step 2: Convert to fraction form
    207,360.72/311,030.10 = 102,144.14/x
  3. Step 3: Cross multiply
    207,360.72x = 311,030.10 × 102,144.14
  4. Step 4: Simplify right side
    207,360.72x = 31,769,902,078.61
  5. Step 5: Solve for x
    x = 31,769,902,078.61/207,360.72
  6. Step 6: Final answer
    x = 153,210.80

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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.