Home / 147,289.50-203,259.92-83,637.27

Finding the Fourth Proportional to 147,289.50, 203,259.92 and 83,637.27

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Solution

The fourth proportional to 147,289.50, 203,259.92 and 83,637.27 is: 115,419.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,289.50 : 203,259.92 = 83,637.27 : x
  2. Step 2: Convert to fraction form
    147,289.50/203,259.92 = 83,637.27/x
  3. Step 3: Cross multiply
    147,289.50x = 203,259.92 × 83,637.27
  4. Step 4: Simplify right side
    147,289.50x = 17,000,104,391.03
  5. Step 5: Solve for x
    x = 17,000,104,391.03/147,289.50
  6. Step 6: Final answer
    x = 115,419.66

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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.