Home / 120,901.10-181,247.70-42,005.06

Finding the Fourth Proportional to 120,901.10, 181,247.70 and 42,005.06

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Solution

The fourth proportional to 120,901.10, 181,247.70 and 42,005.06 is: 62,971.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,901.10 : 181,247.70 = 42,005.06 : x
  2. Step 2: Convert to fraction form
    120,901.10/181,247.70 = 42,005.06/x
  3. Step 3: Cross multiply
    120,901.10x = 181,247.70 × 42,005.06
  4. Step 4: Simplify right side
    120,901.10x = 7,613,320,513.36
  5. Step 5: Solve for x
    x = 7,613,320,513.36/120,901.10
  6. Step 6: Final answer
    x = 62,971.47

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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.