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Finding the Fourth Proportional to 169,614.16, 254,426.64 and 85,328.26

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Solution

The fourth proportional to 169,614.16, 254,426.64 and 85,328.26 is: 127,995.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,614.16 : 254,426.64 = 85,328.26 : x
  2. Step 2: Convert to fraction form
    169,614.16/254,426.64 = 85,328.26/x
  3. Step 3: Cross multiply
    169,614.16x = 254,426.64 × 85,328.26
  4. Step 4: Simplify right side
    169,614.16x = 21,709,782,488.85
  5. Step 5: Solve for x
    x = 21,709,782,488.85/169,614.16
  6. Step 6: Final answer
    x = 127,995.11

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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.