Home / 151,394.02-208,928.73-83,413.78

Finding the Fourth Proportional to 151,394.02, 208,928.73 and 83,413.78

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Solution

The fourth proportional to 151,394.02, 208,928.73 and 83,413.78 is: 115,113.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,394.02 : 208,928.73 = 83,413.78 : x
  2. Step 2: Convert to fraction form
    151,394.02/208,928.73 = 83,413.78/x
  3. Step 3: Cross multiply
    151,394.02x = 208,928.73 × 83,413.78
  4. Step 4: Simplify right side
    151,394.02x = 17,427,535,119.90
  5. Step 5: Solve for x
    x = 17,427,535,119.90/151,394.02
  6. Step 6: Final answer
    x = 115,113.76

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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.