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Finding the Fourth Proportional to 140,649.36, 210,777.12 and 101,020.92

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Solution

The fourth proportional to 140,649.36, 210,777.12 and 101,020.92 is: 151,389.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,649.36 : 210,777.12 = 101,020.92 : x
  2. Step 2: Convert to fraction form
    140,649.36/210,777.12 = 101,020.92/x
  3. Step 3: Cross multiply
    140,649.36x = 210,777.12 × 101,020.92
  4. Step 4: Simplify right side
    140,649.36x = 21,292,898,577.35
  5. Step 5: Solve for x
    x = 21,292,898,577.35/140,649.36
  6. Step 6: Final answer
    x = 151,389.94

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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.