Home / 103,108.84-154,663.33-28,229.60

Finding the Fourth Proportional to 103,108.84, 154,663.33 and 28,229.60

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Solution

The fourth proportional to 103,108.84, 154,663.33 and 28,229.60 is: 42,344.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,108.84 : 154,663.33 = 28,229.60 : x
  2. Step 2: Convert to fraction form
    103,108.84/154,663.33 = 28,229.60/x
  3. Step 3: Cross multiply
    103,108.84x = 154,663.33 × 28,229.60
  4. Step 4: Simplify right side
    103,108.84x = 4,366,084,362.51
  5. Step 5: Solve for x
    x = 4,366,084,362.51/103,108.84
  6. Step 6: Final answer
    x = 42,344.42

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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.