Home / 121,413.90-182,120.43-56,491.86

Finding the Fourth Proportional to 121,413.90, 182,120.43 and 56,491.86

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Solution

The fourth proportional to 121,413.90, 182,120.43 and 56,491.86 is: 84,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,413.90 : 182,120.43 = 56,491.86 : x
  2. Step 2: Convert to fraction form
    121,413.90/182,120.43 = 56,491.86/x
  3. Step 3: Cross multiply
    121,413.90x = 182,120.43 × 56,491.86
  4. Step 4: Simplify right side
    121,413.90x = 10,288,321,834.70
  5. Step 5: Solve for x
    x = 10,288,321,834.70/121,413.90
  6. Step 6: Final answer
    x = 84,737.59

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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.