Home / 103,258.20-154,943.70-40,080.81

Finding the Fourth Proportional to 103,258.20, 154,943.70 and 40,080.81

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Solution

The fourth proportional to 103,258.20, 154,943.70 and 40,080.81 is: 60,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,258.20 : 154,943.70 = 40,080.81 : x
  2. Step 2: Convert to fraction form
    103,258.20/154,943.70 = 40,080.81/x
  3. Step 3: Cross multiply
    103,258.20x = 154,943.70 × 40,080.81
  4. Step 4: Simplify right side
    103,258.20x = 6,210,269,000.40
  5. Step 5: Solve for x
    x = 6,210,269,000.40/103,258.20
  6. Step 6: Final answer
    x = 60,143.11

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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.