Home / 105,476.03-145,556.38-57,077.92

Finding the Fourth Proportional to 105,476.03, 145,556.38 and 57,077.92

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Solution

The fourth proportional to 105,476.03, 145,556.38 and 57,077.92 is: 78,767.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,476.03 : 145,556.38 = 57,077.92 : x
  2. Step 2: Convert to fraction form
    105,476.03/145,556.38 = 57,077.92/x
  3. Step 3: Cross multiply
    105,476.03x = 145,556.38 × 57,077.92
  4. Step 4: Simplify right side
    105,476.03x = 8,308,055,413.13
  5. Step 5: Solve for x
    x = 8,308,055,413.13/105,476.03
  6. Step 6: Final answer
    x = 78,767.24

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1.5x scale

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.