Home / 212,868.27-319,303.67-63,109.87

Finding the Fourth Proportional to 212,868.27, 319,303.67 and 63,109.87

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Solution

The fourth proportional to 212,868.27, 319,303.67 and 63,109.87 is: 94,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,868.27 : 319,303.67 = 63,109.87 : x
  2. Step 2: Convert to fraction form
    212,868.27/319,303.67 = 63,109.87/x
  3. Step 3: Cross multiply
    212,868.27x = 319,303.67 × 63,109.87
  4. Step 4: Simplify right side
    212,868.27x = 20,151,211,990.41
  5. Step 5: Solve for x
    x = 20,151,211,990.41/212,868.27
  6. Step 6: Final answer
    x = 94,665.17

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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.