Home / 147,110.31-203,006.25-83,446.74

Finding the Fourth Proportional to 147,110.31, 203,006.25 and 83,446.74

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Solution

The fourth proportional to 147,110.31, 203,006.25 and 83,446.74 is: 115,153.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,110.31 : 203,006.25 = 83,446.74 : x
  2. Step 2: Convert to fraction form
    147,110.31/203,006.25 = 83,446.74/x
  3. Step 3: Cross multiply
    147,110.31x = 203,006.25 × 83,446.74
  4. Step 4: Simplify right side
    147,110.31x = 16,940,209,762.13
  5. Step 5: Solve for x
    x = 16,940,209,762.13/147,110.31
  6. Step 6: Final answer
    x = 115,153.11

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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.