Home / 219,135.14-302,420.76-123,606.98

Finding the Fourth Proportional to 219,135.14, 302,420.76 and 123,606.98

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Solution

The fourth proportional to 219,135.14, 302,420.76 and 123,606.98 is: 170,585.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,135.14 : 302,420.76 = 123,606.98 : x
  2. Step 2: Convert to fraction form
    219,135.14/302,420.76 = 123,606.98/x
  3. Step 3: Cross multiply
    219,135.14x = 302,420.76 × 123,606.98
  4. Step 4: Simplify right side
    219,135.14x = 37,381,316,832.90
  5. Step 5: Solve for x
    x = 37,381,316,832.90/219,135.14
  6. Step 6: Final answer
    x = 170,585.68

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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.