Home / 115,644.22-159,586.95-65,342.14

Finding the Fourth Proportional to 115,644.22, 159,586.95 and 65,342.14

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Solution

The fourth proportional to 115,644.22, 159,586.95 and 65,342.14 is: 90,170.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,644.22 : 159,586.95 = 65,342.14 : x
  2. Step 2: Convert to fraction form
    115,644.22/159,586.95 = 65,342.14/x
  3. Step 3: Cross multiply
    115,644.22x = 159,586.95 × 65,342.14
  4. Step 4: Simplify right side
    115,644.22x = 10,427,752,829.07
  5. Step 5: Solve for x
    x = 10,427,752,829.07/115,644.22
  6. Step 6: Final answer
    x = 90,170.98

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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.