Home / 122,275.40-183,413.10-84,221.60

Finding the Fourth Proportional to 122,275.40, 183,413.10 and 84,221.60

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Solution

The fourth proportional to 122,275.40, 183,413.10 and 84,221.60 is: 126,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,275.40 : 183,413.10 = 84,221.60 : x
  2. Step 2: Convert to fraction form
    122,275.40/183,413.10 = 84,221.60/x
  3. Step 3: Cross multiply
    122,275.40x = 183,413.10 × 84,221.60
  4. Step 4: Simplify right side
    122,275.40x = 15,447,344,742.96
  5. Step 5: Solve for x
    x = 15,447,344,742.96/122,275.40
  6. Step 6: Final answer
    x = 126,332.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.