Home / 189,141.16-261,033.20-141,311.47

Finding the Fourth Proportional to 189,141.16, 261,033.20 and 141,311.47

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Solution

The fourth proportional to 189,141.16, 261,033.20 and 141,311.47 is: 195,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,141.16 : 261,033.20 = 141,311.47 : x
  2. Step 2: Convert to fraction form
    189,141.16/261,033.20 = 141,311.47/x
  3. Step 3: Cross multiply
    189,141.16x = 261,033.20 × 141,311.47
  4. Step 4: Simplify right side
    189,141.16x = 36,886,985,210.80
  5. Step 5: Solve for x
    x = 36,886,985,210.80/189,141.16
  6. Step 6: Final answer
    x = 195,023.58

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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.