Home / 219,428.76-302,811.90-123,935.64

Finding the Fourth Proportional to 219,428.76, 302,811.90 and 123,935.64

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Solution

The fourth proportional to 219,428.76, 302,811.90 and 123,935.64 is: 171,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,428.76 : 302,811.90 = 123,935.64 : x
  2. Step 2: Convert to fraction form
    219,428.76/302,811.90 = 123,935.64/x
  3. Step 3: Cross multiply
    219,428.76x = 302,811.90 × 123,935.64
  4. Step 4: Simplify right side
    219,428.76x = 37,529,186,626.12
  5. Step 5: Solve for x
    x = 37,529,186,626.12/219,428.76
  6. Step 6: Final answer
    x = 171,031.30

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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.