Home / 157,413.30-217,236.16-89,441.78

Finding the Fourth Proportional to 157,413.30, 217,236.16 and 89,441.78

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Solution

The fourth proportional to 157,413.30, 217,236.16 and 89,441.78 is: 123,432.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,413.30 : 217,236.16 = 89,441.78 : x
  2. Step 2: Convert to fraction form
    157,413.30/217,236.16 = 89,441.78/x
  3. Step 3: Cross multiply
    157,413.30x = 217,236.16 × 89,441.78
  4. Step 4: Simplify right side
    157,413.30x = 19,429,989,397.34
  5. Step 5: Solve for x
    x = 19,429,989,397.34/157,413.30
  6. Step 6: Final answer
    x = 123,432.96

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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.