Home / 218,916.61-302,100.91-123,423.41

Finding the Fourth Proportional to 218,916.61, 302,100.91 and 123,423.41

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Solution

The fourth proportional to 218,916.61, 302,100.91 and 123,423.41 is: 170,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,916.61 : 302,100.91 = 123,423.41 : x
  2. Step 2: Convert to fraction form
    218,916.61/302,100.91 = 123,423.41/x
  3. Step 3: Cross multiply
    218,916.61x = 302,100.91 × 123,423.41
  4. Step 4: Simplify right side
    218,916.61x = 37,286,324,923.00
  5. Step 5: Solve for x
    x = 37,286,324,923.00/218,916.61
  6. Step 6: Final answer
    x = 170,322.05

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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.