Home / 189,959.18-262,087.25-109,384.63

Finding the Fourth Proportional to 189,959.18, 262,087.25 and 109,384.63

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Solution

The fourth proportional to 189,959.18, 262,087.25 and 109,384.63 is: 150,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,959.18 : 262,087.25 = 109,384.63 : x
  2. Step 2: Convert to fraction form
    189,959.18/262,087.25 = 109,384.63/x
  3. Step 3: Cross multiply
    189,959.18x = 262,087.25 × 109,384.63
  4. Step 4: Simplify right side
    189,959.18x = 28,668,315,666.83
  5. Step 5: Solve for x
    x = 28,668,315,666.83/189,959.18
  6. Step 6: Final answer
    x = 150,918.30

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1.5x scale

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.