Home / 212,749.56-319,123.35-62,990.76

Finding the Fourth Proportional to 212,749.56, 319,123.35 and 62,990.76

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Solution

The fourth proportional to 212,749.56, 319,123.35 and 62,990.76 is: 94,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,749.56 : 319,123.35 = 62,990.76 : x
  2. Step 2: Convert to fraction form
    212,749.56/319,123.35 = 62,990.76/x
  3. Step 3: Cross multiply
    212,749.56x = 319,123.35 × 62,990.76
  4. Step 4: Simplify right side
    212,749.56x = 20,101,822,350.25
  5. Step 5: Solve for x
    x = 20,101,822,350.25/212,749.56
  6. Step 6: Final answer
    x = 94,485.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.