Home / 219,134.10-302,405.53-123,640.88

Finding the Fourth Proportional to 219,134.10, 302,405.53 and 123,640.88

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Solution

The fourth proportional to 219,134.10, 302,405.53 and 123,640.88 is: 170,624.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,134.10 : 302,405.53 = 123,640.88 : x
  2. Step 2: Convert to fraction form
    219,134.10/302,405.53 = 123,640.88/x
  3. Step 3: Cross multiply
    219,134.10x = 302,405.53 × 123,640.88
  4. Step 4: Simplify right side
    219,134.10x = 37,389,684,024.94
  5. Step 5: Solve for x
    x = 37,389,684,024.94/219,134.10
  6. Step 6: Final answer
    x = 170,624.67

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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.