Home / 223,159.20-307,961.84-122,557.20

Finding the Fourth Proportional to 223,159.20, 307,961.84 and 122,557.20

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Solution

The fourth proportional to 223,159.20, 307,961.84 and 122,557.20 is: 169,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,159.20 : 307,961.84 = 122,557.20 : x
  2. Step 2: Convert to fraction form
    223,159.20/307,961.84 = 122,557.20/x
  3. Step 3: Cross multiply
    223,159.20x = 307,961.84 × 122,557.20
  4. Step 4: Simplify right side
    223,159.20x = 37,742,940,817.25
  5. Step 5: Solve for x
    x = 37,742,940,817.25/223,159.20
  6. Step 6: Final answer
    x = 169,130.11

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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.