Home / 219,119.78-302,379.18-123,635.36

Finding the Fourth Proportional to 219,119.78, 302,379.18 and 123,635.36

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Solution

The fourth proportional to 219,119.78, 302,379.18 and 123,635.36 is: 170,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,119.78 : 302,379.18 = 123,635.36 : x
  2. Step 2: Convert to fraction form
    219,119.78/302,379.18 = 123,635.36/x
  3. Step 3: Cross multiply
    219,119.78x = 302,379.18 × 123,635.36
  4. Step 4: Simplify right side
    219,119.78x = 37,384,759,068.12
  5. Step 5: Solve for x
    x = 37,384,759,068.12/219,119.78
  6. Step 6: Final answer
    x = 170,613.35

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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.