Home / 107,172.97-147,906.13-59,430.76

Finding the Fourth Proportional to 107,172.97, 147,906.13 and 59,430.76

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Solution

The fourth proportional to 107,172.97, 147,906.13 and 59,430.76 is: 82,018.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,172.97 : 147,906.13 = 59,430.76 : x
  2. Step 2: Convert to fraction form
    107,172.97/147,906.13 = 59,430.76/x
  3. Step 3: Cross multiply
    107,172.97x = 147,906.13 × 59,430.76
  4. Step 4: Simplify right side
    107,172.97x = 8,790,173,714.56
  5. Step 5: Solve for x
    x = 8,790,173,714.56/107,172.97
  6. Step 6: Final answer
    x = 82,018.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.