Home / 149,259.70-205,820.53-115,273.72

Finding the Fourth Proportional to 149,259.70, 205,820.53 and 115,273.72

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Solution

The fourth proportional to 149,259.70, 205,820.53 and 115,273.72 is: 158,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,259.70 : 205,820.53 = 115,273.72 : x
  2. Step 2: Convert to fraction form
    149,259.70/205,820.53 = 115,273.72/x
  3. Step 3: Cross multiply
    149,259.70x = 205,820.53 × 115,273.72
  4. Step 4: Simplify right side
    149,259.70x = 23,725,698,145.47
  5. Step 5: Solve for x
    x = 23,725,698,145.47/149,259.70
  6. Step 6: Final answer
    x = 158,955.82

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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.