Home / 119,380.40-164,742.28-65,664.24

Finding the Fourth Proportional to 119,380.40, 164,742.28 and 65,664.24

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Solution

The fourth proportional to 119,380.40, 164,742.28 and 65,664.24 is: 90,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,380.40 : 164,742.28 = 65,664.24 : x
  2. Step 2: Convert to fraction form
    119,380.40/164,742.28 = 65,664.24/x
  3. Step 3: Cross multiply
    119,380.40x = 164,742.28 × 65,664.24
  4. Step 4: Simplify right side
    119,380.40x = 10,817,676,612.07
  5. Step 5: Solve for x
    x = 10,817,676,612.07/119,380.40
  6. Step 6: Final answer
    x = 90,615.18

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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.