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Finding the Fourth Proportional to 140,126.54, 210,183.93 and 65,220.92

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Solution

The fourth proportional to 140,126.54, 210,183.93 and 65,220.92 is: 97,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,126.54 : 210,183.93 = 65,220.92 : x
  2. Step 2: Convert to fraction form
    140,126.54/210,183.93 = 65,220.92/x
  3. Step 3: Cross multiply
    140,126.54x = 210,183.93 × 65,220.92
  4. Step 4: Simplify right side
    140,126.54x = 13,708,389,283.82
  5. Step 5: Solve for x
    x = 13,708,389,283.82/140,126.54
  6. Step 6: Final answer
    x = 97,828.64

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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.