Home / 151,387.64-208,914.48-83,405.36

Finding the Fourth Proportional to 151,387.64, 208,914.48 and 83,405.36

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Solution

The fourth proportional to 151,387.64, 208,914.48 and 83,405.36 is: 115,099.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,387.64 : 208,914.48 = 83,405.36 : x
  2. Step 2: Convert to fraction form
    151,387.64/208,914.48 = 83,405.36/x
  3. Step 3: Cross multiply
    151,387.64x = 208,914.48 × 83,405.36
  4. Step 4: Simplify right side
    151,387.64x = 17,424,587,413.61
  5. Step 5: Solve for x
    x = 17,424,587,413.61/151,387.64
  6. Step 6: Final answer
    x = 115,099.14

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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.