Home / 119,116.58-164,381.20-65,405.06

Finding the Fourth Proportional to 119,116.58, 164,381.20 and 65,405.06

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Solution

The fourth proportional to 119,116.58, 164,381.20 and 65,405.06 is: 90,259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,116.58 : 164,381.20 = 65,405.06 : x
  2. Step 2: Convert to fraction form
    119,116.58/164,381.20 = 65,405.06/x
  3. Step 3: Cross multiply
    119,116.58x = 164,381.20 × 65,405.06
  4. Step 4: Simplify right side
    119,116.58x = 10,751,362,248.87
  5. Step 5: Solve for x
    x = 10,751,362,248.87/119,116.58
  6. Step 6: Final answer
    x = 90,259.16

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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.