Home / 197,120.34-272,036.13-120,615.43

Finding the Fourth Proportional to 197,120.34, 272,036.13 and 120,615.43

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Solution

The fourth proportional to 197,120.34, 272,036.13 and 120,615.43 is: 166,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,120.34 : 272,036.13 = 120,615.43 : x
  2. Step 2: Convert to fraction form
    197,120.34/272,036.13 = 120,615.43/x
  3. Step 3: Cross multiply
    197,120.34x = 272,036.13 × 120,615.43
  4. Step 4: Simplify right side
    197,120.34x = 32,811,754,795.49
  5. Step 5: Solve for x
    x = 32,811,754,795.49/197,120.34
  6. Step 6: Final answer
    x = 166,455.45

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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.