Home / 107,128.60-147,848.07-59,391.18

Finding the Fourth Proportional to 107,128.60, 147,848.07 and 59,391.18

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Solution

The fourth proportional to 107,128.60, 147,848.07 and 59,391.18 is: 81,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,128.60 : 147,848.07 = 59,391.18 : x
  2. Step 2: Convert to fraction form
    107,128.60/147,848.07 = 59,391.18/x
  3. Step 3: Cross multiply
    107,128.60x = 147,848.07 × 59,391.18
  4. Step 4: Simplify right side
    107,128.60x = 8,780,871,338.02
  5. Step 5: Solve for x
    x = 8,780,871,338.02/107,128.60
  6. Step 6: Final answer
    x = 81,965.71

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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.