Home / 148,964.07-205,549.02-87,673.80

Finding the Fourth Proportional to 148,964.07, 205,549.02 and 87,673.80

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Solution

The fourth proportional to 148,964.07, 205,549.02 and 87,673.80 is: 120,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,964.07 : 205,549.02 = 87,673.80 : x
  2. Step 2: Convert to fraction form
    148,964.07/205,549.02 = 87,673.80/x
  3. Step 3: Cross multiply
    148,964.07x = 205,549.02 × 87,673.80
  4. Step 4: Simplify right side
    148,964.07x = 18,021,263,669.68
  5. Step 5: Solve for x
    x = 18,021,263,669.68/148,964.07
  6. Step 6: Final answer
    x = 120,977.25

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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.