Home / 121,905.09-182,812.16-41,920.43

Finding the Fourth Proportional to 121,905.09, 182,812.16 and 41,920.43

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Solution

The fourth proportional to 121,905.09, 182,812.16 and 41,920.43 is: 62,865.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,905.09 : 182,812.16 = 41,920.43 : x
  2. Step 2: Convert to fraction form
    121,905.09/182,812.16 = 41,920.43/x
  3. Step 3: Cross multiply
    121,905.09x = 182,812.16 × 41,920.43
  4. Step 4: Simplify right side
    121,905.09x = 7,663,563,232.77
  5. Step 5: Solve for x
    x = 7,663,563,232.77/121,905.09
  6. Step 6: Final answer
    x = 62,865.00

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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.