Home / 189,878.23-262,031.28-107,085.64

Finding the Fourth Proportional to 189,878.23, 262,031.28 and 107,085.64

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Solution

The fourth proportional to 189,878.23, 262,031.28 and 107,085.64 is: 147,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,878.23 : 262,031.28 = 107,085.64 : x
  2. Step 2: Convert to fraction form
    189,878.23/262,031.28 = 107,085.64/x
  3. Step 3: Cross multiply
    189,878.23x = 262,031.28 × 107,085.64
  4. Step 4: Simplify right side
    189,878.23x = 28,059,787,318.82
  5. Step 5: Solve for x
    x = 28,059,787,318.82/189,878.23
  6. Step 6: Final answer
    x = 147,777.80

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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.