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Finding the Fourth Proportional to 171,004.30, 256,117.65 and 108,018.70

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Solution

The fourth proportional to 171,004.30, 256,117.65 and 108,018.70 is: 161,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,004.30 : 256,117.65 = 108,018.70 : x
  2. Step 2: Convert to fraction form
    171,004.30/256,117.65 = 108,018.70/x
  3. Step 3: Cross multiply
    171,004.30x = 256,117.65 × 108,018.70
  4. Step 4: Simplify right side
    171,004.30x = 27,665,495,600.06
  5. Step 5: Solve for x
    x = 27,665,495,600.06/171,004.30
  6. Step 6: Final answer
    x = 161,782.46

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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.