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Finding the Fourth Proportional to 115,679.37, 159,282.69 and 101,258.49

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Solution

The fourth proportional to 115,679.37, 159,282.69 and 101,258.49 is: 139,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,679.37 : 159,282.69 = 101,258.49 : x
  2. Step 2: Convert to fraction form
    115,679.37/159,282.69 = 101,258.49/x
  3. Step 3: Cross multiply
    115,679.37x = 159,282.69 × 101,258.49
  4. Step 4: Simplify right side
    115,679.37x = 16,128,724,672.54
  5. Step 5: Solve for x
    x = 16,128,724,672.54/115,679.37
  6. Step 6: Final answer
    x = 139,426.11

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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.