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Finding the Fourth Proportional to 169,321.48, 253,483.74 and 125,145.16

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Solution

The fourth proportional to 169,321.48, 253,483.74 and 125,145.16 is: 187,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,321.48 : 253,483.74 = 125,145.16 : x
  2. Step 2: Convert to fraction form
    169,321.48/253,483.74 = 125,145.16/x
  3. Step 3: Cross multiply
    169,321.48x = 253,483.74 × 125,145.16
  4. Step 4: Simplify right side
    169,321.48x = 31,722,263,199.70
  5. Step 5: Solve for x
    x = 31,722,263,199.70/169,321.48
  6. Step 6: Final answer
    x = 187,349.31

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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.