Home / 189,428.34-284,055.03-71,014.98

Finding the Fourth Proportional to 189,428.34, 284,055.03 and 71,014.98

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Solution

The fourth proportional to 189,428.34, 284,055.03 and 71,014.98 is: 106,489.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,428.34 : 284,055.03 = 71,014.98 : x
  2. Step 2: Convert to fraction form
    189,428.34/284,055.03 = 71,014.98/x
  3. Step 3: Cross multiply
    189,428.34x = 284,055.03 × 71,014.98
  4. Step 4: Simplify right side
    189,428.34x = 20,172,162,274.35
  5. Step 5: Solve for x
    x = 20,172,162,274.35/189,428.34
  6. Step 6: Final answer
    x = 106,489.67

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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.