Home / 210,902.13-315,955.80-104,161.14

Finding the Fourth Proportional to 210,902.13, 315,955.80 and 104,161.14

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Solution

The fourth proportional to 210,902.13, 315,955.80 and 104,161.14 is: 156,045.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,902.13 : 315,955.80 = 104,161.14 : x
  2. Step 2: Convert to fraction form
    210,902.13/315,955.80 = 104,161.14/x
  3. Step 3: Cross multiply
    210,902.13x = 315,955.80 × 104,161.14
  4. Step 4: Simplify right side
    210,902.13x = 32,910,316,317.61
  5. Step 5: Solve for x
    x = 32,910,316,317.61/210,902.13
  6. Step 6: Final answer
    x = 156,045.44

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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.