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Finding the Fourth Proportional to 146,911.64, 202,720.56 and 86,468.88

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Solution

The fourth proportional to 146,911.64, 202,720.56 and 86,468.88 is: 119,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,911.64 : 202,720.56 = 86,468.88 : x
  2. Step 2: Convert to fraction form
    146,911.64/202,720.56 = 86,468.88/x
  3. Step 3: Cross multiply
    146,911.64x = 202,720.56 × 86,468.88
  4. Step 4: Simplify right side
    146,911.64x = 17,529,019,776.17
  5. Step 5: Solve for x
    x = 17,529,019,776.17/146,911.64
  6. Step 6: Final answer
    x = 119,316.75

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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.