Home / 254,129.17-380,945.89-120,973.68

Finding the Fourth Proportional to 254,129.17, 380,945.89 and 120,973.68

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Solution

The fourth proportional to 254,129.17, 380,945.89 and 120,973.68 is: 181,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,129.17 : 380,945.89 = 120,973.68 : x
  2. Step 2: Convert to fraction form
    254,129.17/380,945.89 = 120,973.68/x
  3. Step 3: Cross multiply
    254,129.17x = 380,945.89 × 120,973.68
  4. Step 4: Simplify right side
    254,129.17x = 46,084,426,194.18
  5. Step 5: Solve for x
    x = 46,084,426,194.18/254,129.17
  6. Step 6: Final answer
    x = 181,342.53

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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.