Home / 157,515.20-236,305.20-52,409.60

Finding the Fourth Proportional to 157,515.20, 236,305.20 and 52,409.60

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Solution

The fourth proportional to 157,515.20, 236,305.20 and 52,409.60 is: 78,625.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,515.20 : 236,305.20 = 52,409.60 : x
  2. Step 2: Convert to fraction form
    157,515.20/236,305.20 = 52,409.60/x
  3. Step 3: Cross multiply
    157,515.20x = 236,305.20 × 52,409.60
  4. Step 4: Simplify right side
    157,515.20x = 12,384,661,009.92
  5. Step 5: Solve for x
    x = 12,384,661,009.92/157,515.20
  6. Step 6: Final answer
    x = 78,625.18

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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.