Home / 156,413.85-215,852.22-84,795

Finding the Fourth Proportional to 156,413.85, 215,852.22 and 84,795

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Solution

The fourth proportional to 156,413.85, 215,852.22 and 84,795 is: 117,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,413.85 : 215,852.22 = 84,795 : x
  2. Step 2: Convert to fraction form
    156,413.85/215,852.22 = 84,795/x
  3. Step 3: Cross multiply
    156,413.85x = 215,852.22 × 84,795
  4. Step 4: Simplify right side
    156,413.85x = 18,303,188,994.90
  5. Step 5: Solve for x
    x = 18,303,188,994.90/156,413.85
  6. Step 6: Final answer
    x = 117,017.70

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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.