Home / 117,013.75-161,413.36-71,713.69

Finding the Fourth Proportional to 117,013.75, 161,413.36 and 71,713.69

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Solution

The fourth proportional to 117,013.75, 161,413.36 and 71,713.69 is: 98,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,013.75 : 161,413.36 = 71,713.69 : x
  2. Step 2: Convert to fraction form
    117,013.75/161,413.36 = 71,713.69/x
  3. Step 3: Cross multiply
    117,013.75x = 161,413.36 × 71,713.69
  4. Step 4: Simplify right side
    117,013.75x = 11,575,547,660.90
  5. Step 5: Solve for x
    x = 11,575,547,660.90/117,013.75
  6. Step 6: Final answer
    x = 98,924.68

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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.