Home / 148,448.28-204,857.88-80,465

Finding the Fourth Proportional to 148,448.28, 204,857.88 and 80,465

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Solution

The fourth proportional to 148,448.28, 204,857.88 and 80,465 is: 111,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,448.28 : 204,857.88 = 80,465 : x
  2. Step 2: Convert to fraction form
    148,448.28/204,857.88 = 80,465/x
  3. Step 3: Cross multiply
    148,448.28x = 204,857.88 × 80,465
  4. Step 4: Simplify right side
    148,448.28x = 16,483,889,314.20
  5. Step 5: Solve for x
    x = 16,483,889,314.20/148,448.28
  6. Step 6: Final answer
    x = 111,041.30

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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.