Home / 119,154.60-164,434.32-65,440.26

Finding the Fourth Proportional to 119,154.60, 164,434.32 and 65,440.26

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Solution

The fourth proportional to 119,154.60, 164,434.32 and 65,440.26 is: 90,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,154.60 : 164,434.32 = 65,440.26 : x
  2. Step 2: Convert to fraction form
    119,154.60/164,434.32 = 65,440.26/x
  3. Step 3: Cross multiply
    119,154.60x = 164,434.32 × 65,440.26
  4. Step 4: Simplify right side
    119,154.60x = 10,760,624,653.72
  5. Step 5: Solve for x
    x = 10,760,624,653.72/119,154.60
  6. Step 6: Final answer
    x = 90,308.09

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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.