Home / 155,434.80-233,152.20-121,609.20

Finding the Fourth Proportional to 155,434.80, 233,152.20 and 121,609.20

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Solution

The fourth proportional to 155,434.80, 233,152.20 and 121,609.20 is: 182,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,434.80 : 233,152.20 = 121,609.20 : x
  2. Step 2: Convert to fraction form
    155,434.80/233,152.20 = 121,609.20/x
  3. Step 3: Cross multiply
    155,434.80x = 233,152.20 × 121,609.20
  4. Step 4: Simplify right side
    155,434.80x = 28,353,452,520.24
  5. Step 5: Solve for x
    x = 28,353,452,520.24/155,434.80
  6. Step 6: Final answer
    x = 182,413.80

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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.