Home / 219,456.90-302,875.18-123,969.76

Finding the Fourth Proportional to 219,456.90, 302,875.18 and 123,969.76

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Solution

The fourth proportional to 219,456.90, 302,875.18 and 123,969.76 is: 171,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,456.90 : 302,875.18 = 123,969.76 : x
  2. Step 2: Convert to fraction form
    219,456.90/302,875.18 = 123,969.76/x
  3. Step 3: Cross multiply
    219,456.90x = 302,875.18 × 123,969.76
  4. Step 4: Simplify right side
    219,456.90x = 37,547,363,374.56
  5. Step 5: Solve for x
    x = 37,547,363,374.56/219,456.90
  6. Step 6: Final answer
    x = 171,092.20

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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.