Home / 103,213.47-154,818.75-28,333.53

Finding the Fourth Proportional to 103,213.47, 154,818.75 and 28,333.53

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Solution

The fourth proportional to 103,213.47, 154,818.75 and 28,333.53 is: 42,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,213.47 : 154,818.75 = 28,333.53 : x
  2. Step 2: Convert to fraction form
    103,213.47/154,818.75 = 28,333.53/x
  3. Step 3: Cross multiply
    103,213.47x = 154,818.75 × 28,333.53
  4. Step 4: Simplify right side
    103,213.47x = 4,386,561,697.69
  5. Step 5: Solve for x
    x = 4,386,561,697.69/103,213.47
  6. Step 6: Final answer
    x = 42,499.90

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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.