Home / 89,146.16-133,718.22-21,678.60

Finding the Fourth Proportional to 89,146.16, 133,718.22 and 21,678.60

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Solution

The fourth proportional to 89,146.16, 133,718.22 and 21,678.60 is: 32,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,146.16 : 133,718.22 = 21,678.60 : x
  2. Step 2: Convert to fraction form
    89,146.16/133,718.22 = 21,678.60/x
  3. Step 3: Cross multiply
    89,146.16x = 133,718.22 × 21,678.60
  4. Step 4: Simplify right side
    89,146.16x = 2,898,823,804.09
  5. Step 5: Solve for x
    x = 2,898,823,804.09/89,146.16
  6. Step 6: Final answer
    x = 32,517.65

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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.