Home / 102,003.15-153,004.73-86,912.85

Finding the Fourth Proportional to 102,003.15, 153,004.73 and 86,912.85

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Solution

The fourth proportional to 102,003.15, 153,004.73 and 86,912.85 is: 130,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,003.15 : 153,004.73 = 86,912.85 : x
  2. Step 2: Convert to fraction form
    102,003.15/153,004.73 = 86,912.85/x
  3. Step 3: Cross multiply
    102,003.15x = 153,004.73 × 86,912.85
  4. Step 4: Simplify right side
    102,003.15x = 13,298,077,147.78
  5. Step 5: Solve for x
    x = 13,298,077,147.78/102,003.15
  6. Step 6: Final answer
    x = 130,369.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.