Home / 103,257.89-154,943.27-40,080.51

Finding the Fourth Proportional to 103,257.89, 154,943.27 and 40,080.51

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Solution

The fourth proportional to 103,257.89, 154,943.27 and 40,080.51 is: 60,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,257.89 : 154,943.27 = 40,080.51 : x
  2. Step 2: Convert to fraction form
    103,257.89/154,943.27 = 40,080.51/x
  3. Step 3: Cross multiply
    103,257.89x = 154,943.27 × 40,080.51
  4. Step 4: Simplify right side
    103,257.89x = 6,210,205,082.27
  5. Step 5: Solve for x
    x = 6,210,205,082.27/103,257.89
  6. Step 6: Final answer
    x = 60,142.67

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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.