Home / 102,586.40-153,786.72-40,240.16

Finding the Fourth Proportional to 102,586.40, 153,786.72 and 40,240.16

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Solution

The fourth proportional to 102,586.40, 153,786.72 and 40,240.16 is: 60,323.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,586.40 : 153,786.72 = 40,240.16 : x
  2. Step 2: Convert to fraction form
    102,586.40/153,786.72 = 40,240.16/x
  3. Step 3: Cross multiply
    102,586.40x = 153,786.72 × 40,240.16
  4. Step 4: Simplify right side
    102,586.40x = 6,188,402,218.68
  5. Step 5: Solve for x
    x = 6,188,402,218.68/102,586.40
  6. Step 6: Final answer
    x = 60,323.81

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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.