Home / 197,715.89-272,836.91-111,692.52

Finding the Fourth Proportional to 197,715.89, 272,836.91 and 111,692.52

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Solution

The fourth proportional to 197,715.89, 272,836.91 and 111,692.52 is: 154,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,715.89 : 272,836.91 = 111,692.52 : x
  2. Step 2: Convert to fraction form
    197,715.89/272,836.91 = 111,692.52/x
  3. Step 3: Cross multiply
    197,715.89x = 272,836.91 × 111,692.52
  4. Step 4: Simplify right side
    197,715.89x = 30,473,841,677.87
  5. Step 5: Solve for x
    x = 30,473,841,677.87/197,715.89
  6. Step 6: Final answer
    x = 154,129.45

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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.