Home / 103,366.20-155,054.60-28,484.69

Finding the Fourth Proportional to 103,366.20, 155,054.60 and 28,484.69

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Solution

The fourth proportional to 103,366.20, 155,054.60 and 28,484.69 is: 42,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,366.20 : 155,054.60 = 28,484.69 : x
  2. Step 2: Convert to fraction form
    103,366.20/155,054.60 = 28,484.69/x
  3. Step 3: Cross multiply
    103,366.20x = 155,054.60 × 28,484.69
  4. Step 4: Simplify right side
    103,366.20x = 4,416,681,296.38
  5. Step 5: Solve for x
    x = 4,416,681,296.38/103,366.20
  6. Step 6: Final answer
    x = 42,728.49

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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.