Home / 143,614.08-197,981.64-101,040.48

Finding the Fourth Proportional to 143,614.08, 197,981.64 and 101,040.48

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Solution

The fourth proportional to 143,614.08, 197,981.64 and 101,040.48 is: 139,291.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,614.08 : 197,981.64 = 101,040.48 : x
  2. Step 2: Convert to fraction form
    143,614.08/197,981.64 = 101,040.48/x
  3. Step 3: Cross multiply
    143,614.08x = 197,981.64 × 101,040.48
  4. Step 4: Simplify right side
    143,614.08x = 20,004,159,936.79
  5. Step 5: Solve for x
    x = 20,004,159,936.79/143,614.08
  6. Step 6: Final answer
    x = 139,291.08

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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.