Home / 147,329.15-203,315.64-83,667.40

Finding the Fourth Proportional to 147,329.15, 203,315.64 and 83,667.40

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Solution

The fourth proportional to 147,329.15, 203,315.64 and 83,667.40 is: 115,461.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,329.15 : 203,315.64 = 83,667.40 : x
  2. Step 2: Convert to fraction form
    147,329.15/203,315.64 = 83,667.40/x
  3. Step 3: Cross multiply
    147,329.15x = 203,315.64 × 83,667.40
  4. Step 4: Simplify right side
    147,329.15x = 17,010,890,469.85
  5. Step 5: Solve for x
    x = 17,010,890,469.85/147,329.15
  6. Step 6: Final answer
    x = 115,461.81

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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.