Home / 103,213.89-154,802.61-47,040.66

Finding the Fourth Proportional to 103,213.89, 154,802.61 and 47,040.66

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Solution

The fourth proportional to 103,213.89, 154,802.61 and 47,040.66 is: 70,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,213.89 : 154,802.61 = 47,040.66 : x
  2. Step 2: Convert to fraction form
    103,213.89/154,802.61 = 47,040.66/x
  3. Step 3: Cross multiply
    103,213.89x = 154,802.61 × 47,040.66
  4. Step 4: Simplify right side
    103,213.89x = 7,282,016,944.12
  5. Step 5: Solve for x
    x = 7,282,016,944.12/103,213.89
  6. Step 6: Final answer
    x = 70,552.68

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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.