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Finding the Fourth Proportional to 146,718.52, 202,388.81 and 85,457.49

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Solution

The fourth proportional to 146,718.52, 202,388.81 and 85,457.49 is: 117,883.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,718.52 : 202,388.81 = 85,457.49 : x
  2. Step 2: Convert to fraction form
    146,718.52/202,388.81 = 85,457.49/x
  3. Step 3: Cross multiply
    146,718.52x = 202,388.81 × 85,457.49
  4. Step 4: Simplify right side
    146,718.52x = 17,295,639,706.69
  5. Step 5: Solve for x
    x = 17,295,639,706.69/146,718.52
  6. Step 6: Final answer
    x = 117,883.14

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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.