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Finding the Fourth Proportional to 143,339.80, 214,944.90 and 64,413.40

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Solution

The fourth proportional to 143,339.80, 214,944.90 and 64,413.40 is: 96,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,339.80 : 214,944.90 = 64,413.40 : x
  2. Step 2: Convert to fraction form
    143,339.80/214,944.90 = 64,413.40/x
  3. Step 3: Cross multiply
    143,339.80x = 214,944.90 × 64,413.40
  4. Step 4: Simplify right side
    143,339.80x = 13,845,331,821.66
  5. Step 5: Solve for x
    x = 13,845,331,821.66/143,339.80
  6. Step 6: Final answer
    x = 96,590.98

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1.5x scale

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.