Home / 151,388.26-208,907.48-83,391.90

Finding the Fourth Proportional to 151,388.26, 208,907.48 and 83,391.90

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Solution

The fourth proportional to 151,388.26, 208,907.48 and 83,391.90 is: 115,076.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,388.26 : 208,907.48 = 83,391.90 : x
  2. Step 2: Convert to fraction form
    151,388.26/208,907.48 = 83,391.90/x
  3. Step 3: Cross multiply
    151,388.26x = 208,907.48 × 83,391.90
  4. Step 4: Simplify right side
    151,388.26x = 17,421,191,681.41
  5. Step 5: Solve for x
    x = 17,421,191,681.41/151,388.26
  6. Step 6: Final answer
    x = 115,076.24

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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.