Home / 154,756.10-213,484.81-101,072.54

Finding the Fourth Proportional to 154,756.10, 213,484.81 and 101,072.54

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Solution

The fourth proportional to 154,756.10, 213,484.81 and 101,072.54 is: 139,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,756.10 : 213,484.81 = 101,072.54 : x
  2. Step 2: Convert to fraction form
    154,756.10/213,484.81 = 101,072.54/x
  3. Step 3: Cross multiply
    154,756.10x = 213,484.81 × 101,072.54
  4. Step 4: Simplify right side
    154,756.10x = 21,577,451,998.12
  5. Step 5: Solve for x
    x = 21,577,451,998.12/154,756.10
  6. Step 6: Final answer
    x = 139,428.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.