Home / 103,418.07-155,088.79-36,840.51

Finding the Fourth Proportional to 103,418.07, 155,088.79 and 36,840.51

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Solution

The fourth proportional to 103,418.07, 155,088.79 and 36,840.51 is: 55,247.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,418.07 : 155,088.79 = 36,840.51 : x
  2. Step 2: Convert to fraction form
    103,418.07/155,088.79 = 36,840.51/x
  3. Step 3: Cross multiply
    103,418.07x = 155,088.79 × 36,840.51
  4. Step 4: Simplify right side
    103,418.07x = 5,713,550,118.88
  5. Step 5: Solve for x
    x = 5,713,550,118.88/103,418.07
  6. Step 6: Final answer
    x = 55,247.12

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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.