Home / 147,582.78-203,645.49-83,921.91

Finding the Fourth Proportional to 147,582.78, 203,645.49 and 83,921.91

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Solution

The fourth proportional to 147,582.78, 203,645.49 and 83,921.91 is: 115,801.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,582.78 : 203,645.49 = 83,921.91 : x
  2. Step 2: Convert to fraction form
    147,582.78/203,645.49 = 83,921.91/x
  3. Step 3: Cross multiply
    147,582.78x = 203,645.49 × 83,921.91
  4. Step 4: Simplify right side
    147,582.78x = 17,090,318,483.69
  5. Step 5: Solve for x
    x = 17,090,318,483.69/147,582.78
  6. Step 6: Final answer
    x = 115,801.58

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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.