Home / 121,002.88-181,371.09-49,886.51

Finding the Fourth Proportional to 121,002.88, 181,371.09 and 49,886.51

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Solution

The fourth proportional to 121,002.88, 181,371.09 and 49,886.51 is: 74,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,002.88 : 181,371.09 = 49,886.51 : x
  2. Step 2: Convert to fraction form
    121,002.88/181,371.09 = 49,886.51/x
  3. Step 3: Cross multiply
    121,002.88x = 181,371.09 × 49,886.51
  4. Step 4: Simplify right side
    121,002.88x = 9,047,970,972.71
  5. Step 5: Solve for x
    x = 9,047,970,972.71/121,002.88
  6. Step 6: Final answer
    x = 74,774.84

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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.