Home / 148,103.06-204,378.46-87,674.63

Finding the Fourth Proportional to 148,103.06, 204,378.46 and 87,674.63

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Solution

The fourth proportional to 148,103.06, 204,378.46 and 87,674.63 is: 120,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,103.06 : 204,378.46 = 87,674.63 : x
  2. Step 2: Convert to fraction form
    148,103.06/204,378.46 = 87,674.63/x
  3. Step 3: Cross multiply
    148,103.06x = 204,378.46 × 87,674.63
  4. Step 4: Simplify right side
    148,103.06x = 17,918,804,619.39
  5. Step 5: Solve for x
    x = 17,918,804,619.39/148,103.06
  6. Step 6: Final answer
    x = 120,988.76

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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.