Home / 147,781.07-203,938.11-84,118.87

Finding the Fourth Proportional to 147,781.07, 203,938.11 and 84,118.87

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Solution

The fourth proportional to 147,781.07, 203,938.11 and 84,118.87 is: 116,084.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,781.07 : 203,938.11 = 84,118.87 : x
  2. Step 2: Convert to fraction form
    147,781.07/203,938.11 = 84,118.87/x
  3. Step 3: Cross multiply
    147,781.07x = 203,938.11 × 84,118.87
  4. Step 4: Simplify right side
    147,781.07x = 17,155,041,922.85
  5. Step 5: Solve for x
    x = 17,155,041,922.85/147,781.07
  6. Step 6: Final answer
    x = 116,084.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.