Home / 88,334.70-132,307.65-78,485.10

Finding the Fourth Proportional to 88,334.70, 132,307.65 and 78,485.10

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Solution

The fourth proportional to 88,334.70, 132,307.65 and 78,485.10 is: 117,554.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,334.70 : 132,307.65 = 78,485.10 : x
  2. Step 2: Convert to fraction form
    88,334.70/132,307.65 = 78,485.10/x
  3. Step 3: Cross multiply
    88,334.70x = 132,307.65 × 78,485.10
  4. Step 4: Simplify right side
    88,334.70x = 10,384,179,141.02
  5. Step 5: Solve for x
    x = 10,384,179,141.02/88,334.70
  6. Step 6: Final answer
    x = 117,554.93

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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.