Home / 189,343.46-261,388.67-117,746.55

Finding the Fourth Proportional to 189,343.46, 261,388.67 and 117,746.55

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Solution

The fourth proportional to 189,343.46, 261,388.67 and 117,746.55 is: 162,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,343.46 : 261,388.67 = 117,746.55 : x
  2. Step 2: Convert to fraction form
    189,343.46/261,388.67 = 117,746.55/x
  3. Step 3: Cross multiply
    189,343.46x = 261,388.67 × 117,746.55
  4. Step 4: Simplify right side
    189,343.46x = 30,777,613,512.86
  5. Step 5: Solve for x
    x = 30,777,613,512.86/189,343.46
  6. Step 6: Final answer
    x = 162,549.13

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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.