Home / 103,255.07-154,897.38-45,616.51

Finding the Fourth Proportional to 103,255.07, 154,897.38 and 45,616.51

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Solution

The fourth proportional to 103,255.07, 154,897.38 and 45,616.51 is: 68,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255.07 : 154,897.38 = 45,616.51 : x
  2. Step 2: Convert to fraction form
    103,255.07/154,897.38 = 45,616.51/x
  3. Step 3: Cross multiply
    103,255.07x = 154,897.38 × 45,616.51
  4. Step 4: Simplify right side
    103,255.07x = 7,065,878,513.01
  5. Step 5: Solve for x
    x = 7,065,878,513.01/103,255.07
  6. Step 6: Final answer
    x = 68,431.30

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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.