Home / 147,409.11-203,430.02-83,757.69

Finding the Fourth Proportional to 147,409.11, 203,430.02 and 83,757.69

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Solution

The fourth proportional to 147,409.11, 203,430.02 and 83,757.69 is: 115,588.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,409.11 : 203,430.02 = 83,757.69 : x
  2. Step 2: Convert to fraction form
    147,409.11/203,430.02 = 83,757.69/x
  3. Step 3: Cross multiply
    147,409.11x = 203,430.02 × 83,757.69
  4. Step 4: Simplify right side
    147,409.11x = 17,038,828,133.07
  5. Step 5: Solve for x
    x = 17,038,828,133.07/147,409.11
  6. Step 6: Final answer
    x = 115,588.71

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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.