Home / 197,103.51-272,003.10-112,220.55

Finding the Fourth Proportional to 197,103.51, 272,003.10 and 112,220.55

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Solution

The fourth proportional to 197,103.51, 272,003.10 and 112,220.55 is: 154,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,103.51 : 272,003.10 = 112,220.55 : x
  2. Step 2: Convert to fraction form
    197,103.51/272,003.10 = 112,220.55/x
  3. Step 3: Cross multiply
    197,103.51x = 272,003.10 × 112,220.55
  4. Step 4: Simplify right side
    197,103.51x = 30,524,337,483.71
  5. Step 5: Solve for x
    x = 30,524,337,483.71/197,103.51
  6. Step 6: Final answer
    x = 154,864.50

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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.