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Finding the Fourth Proportional to 146,203.79, 201,762.90 and 85,775.48

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Solution

The fourth proportional to 146,203.79, 201,762.90 and 85,775.48 is: 118,371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,203.79 : 201,762.90 = 85,775.48 : x
  2. Step 2: Convert to fraction form
    146,203.79/201,762.90 = 85,775.48/x
  3. Step 3: Cross multiply
    146,203.79x = 201,762.90 × 85,775.48
  4. Step 4: Simplify right side
    146,203.79x = 17,306,309,593.69
  5. Step 5: Solve for x
    x = 17,306,309,593.69/146,203.79
  6. Step 6: Final answer
    x = 118,371.14

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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.