Home / 119,380.41-164,742.28-65,664.25

Finding the Fourth Proportional to 119,380.41, 164,742.28 and 65,664.25

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Solution

The fourth proportional to 119,380.41, 164,742.28 and 65,664.25 is: 90,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,380.41 : 164,742.28 = 65,664.25 : x
  2. Step 2: Convert to fraction form
    119,380.41/164,742.28 = 65,664.25/x
  3. Step 3: Cross multiply
    119,380.41x = 164,742.28 × 65,664.25
  4. Step 4: Simplify right side
    119,380.41x = 10,817,678,259.49
  5. Step 5: Solve for x
    x = 10,817,678,259.49/119,380.41
  6. Step 6: Final answer
    x = 90,615.19

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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.