Home / 219,541.57-302,967.68-118,939.57

Finding the Fourth Proportional to 219,541.57, 302,967.68 and 118,939.57

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Solution

The fourth proportional to 219,541.57, 302,967.68 and 118,939.57 is: 164,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,541.57 : 302,967.68 = 118,939.57 : x
  2. Step 2: Convert to fraction form
    219,541.57/302,967.68 = 118,939.57/x
  3. Step 3: Cross multiply
    219,541.57x = 302,967.68 × 118,939.57
  4. Step 4: Simplify right side
    219,541.57x = 36,034,845,583.10
  5. Step 5: Solve for x
    x = 36,034,845,583.10/219,541.57
  6. Step 6: Final answer
    x = 164,136.78

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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.