Home / 102,188.57-153,305.91-31,117.56

Finding the Fourth Proportional to 102,188.57, 153,305.91 and 31,117.56

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Solution

The fourth proportional to 102,188.57, 153,305.91 and 31,117.56 is: 46,683.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,188.57 : 153,305.91 = 31,117.56 : x
  2. Step 2: Convert to fraction form
    102,188.57/153,305.91 = 31,117.56/x
  3. Step 3: Cross multiply
    102,188.57x = 153,305.91 × 31,117.56
  4. Step 4: Simplify right side
    102,188.57x = 4,770,505,852.78
  5. Step 5: Solve for x
    x = 4,770,505,852.78/102,188.57
  6. Step 6: Final answer
    x = 46,683.36

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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.