Home / 219,042.72-302,273.48-123,541.90

Finding the Fourth Proportional to 219,042.72, 302,273.48 and 123,541.90

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Solution

The fourth proportional to 219,042.72, 302,273.48 and 123,541.90 is: 170,484.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,042.72 : 302,273.48 = 123,541.90 : x
  2. Step 2: Convert to fraction form
    219,042.72/302,273.48 = 123,541.90/x
  3. Step 3: Cross multiply
    219,042.72x = 302,273.48 × 123,541.90
  4. Step 4: Simplify right side
    219,042.72x = 37,343,440,038.81
  5. Step 5: Solve for x
    x = 37,343,440,038.81/219,042.72
  6. Step 6: Final answer
    x = 170,484.73

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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.