Home / 103,413.15-142,706.49-63,194.22

Finding the Fourth Proportional to 103,413.15, 142,706.49 and 63,194.22

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Solution

The fourth proportional to 103,413.15, 142,706.49 and 63,194.22 is: 87,205.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,413.15 : 142,706.49 = 63,194.22 : x
  2. Step 2: Convert to fraction form
    103,413.15/142,706.49 = 63,194.22/x
  3. Step 3: Cross multiply
    103,413.15x = 142,706.49 × 63,194.22
  4. Step 4: Simplify right side
    103,413.15x = 9,018,225,324.49
  5. Step 5: Solve for x
    x = 9,018,225,324.49/103,413.15
  6. Step 6: Final answer
    x = 87,205.79

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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.