Home / 197,689.56-272,831.13-112,819.38

Finding the Fourth Proportional to 197,689.56, 272,831.13 and 112,819.38

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Solution

The fourth proportional to 197,689.56, 272,831.13 and 112,819.38 is: 155,701.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,689.56 : 272,831.13 = 112,819.38 : x
  2. Step 2: Convert to fraction form
    197,689.56/272,831.13 = 112,819.38/x
  3. Step 3: Cross multiply
    197,689.56x = 272,831.13 × 112,819.38
  4. Step 4: Simplify right side
    197,689.56x = 30,780,638,931.30
  5. Step 5: Solve for x
    x = 30,780,638,931.30/197,689.56
  6. Step 6: Final answer
    x = 155,701.89

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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.