Home / 156,823.47-216,413.73-85,204.62

Finding the Fourth Proportional to 156,823.47, 216,413.73 and 85,204.62

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Solution

The fourth proportional to 156,823.47, 216,413.73 and 85,204.62 is: 117,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,823.47 : 216,413.73 = 85,204.62 : x
  2. Step 2: Convert to fraction form
    156,823.47/216,413.73 = 85,204.62/x
  3. Step 3: Cross multiply
    156,823.47x = 216,413.73 × 85,204.62
  4. Step 4: Simplify right side
    156,823.47x = 18,439,449,627.43
  5. Step 5: Solve for x
    x = 18,439,449,627.43/156,823.47
  6. Step 6: Final answer
    x = 117,580.93

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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.