Home / 88,419.60-132,629.40-70,923.60

Finding the Fourth Proportional to 88,419.60, 132,629.40 and 70,923.60

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Solution

The fourth proportional to 88,419.60, 132,629.40 and 70,923.60 is: 106,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,419.60 : 132,629.40 = 70,923.60 : x
  2. Step 2: Convert to fraction form
    88,419.60/132,629.40 = 70,923.60/x
  3. Step 3: Cross multiply
    88,419.60x = 132,629.40 × 70,923.60
  4. Step 4: Simplify right side
    88,419.60x = 9,406,554,513.84
  5. Step 5: Solve for x
    x = 9,406,554,513.84/88,419.60
  6. Step 6: Final answer
    x = 106,385.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.