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Finding the Fourth Proportional to 115,335.54, 159,164.19 and 64,347.84

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Solution

The fourth proportional to 115,335.54, 159,164.19 and 64,347.84 is: 88,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,335.54 : 159,164.19 = 64,347.84 : x
  2. Step 2: Convert to fraction form
    115,335.54/159,164.19 = 64,347.84/x
  3. Step 3: Cross multiply
    115,335.54x = 159,164.19 × 64,347.84
  4. Step 4: Simplify right side
    115,335.54x = 10,241,871,831.85
  5. Step 5: Solve for x
    x = 10,241,871,831.85/115,335.54
  6. Step 6: Final answer
    x = 88,800.66

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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.