Home / 154,564.40-213,301.56-86,580.80

Finding the Fourth Proportional to 154,564.40, 213,301.56 and 86,580.80

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Solution

The fourth proportional to 154,564.40, 213,301.56 and 86,580.80 is: 119,483.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,564.40 : 213,301.56 = 86,580.80 : x
  2. Step 2: Convert to fraction form
    154,564.40/213,301.56 = 86,580.80/x
  3. Step 3: Cross multiply
    154,564.40x = 213,301.56 × 86,580.80
  4. Step 4: Simplify right side
    154,564.40x = 18,467,819,706.05
  5. Step 5: Solve for x
    x = 18,467,819,706.05/154,564.40
  6. Step 6: Final answer
    x = 119,483.01

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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.