Home / 154,350.48-213,007.68-86,365.20

Finding the Fourth Proportional to 154,350.48, 213,007.68 and 86,365.20

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Solution

The fourth proportional to 154,350.48, 213,007.68 and 86,365.20 is: 119,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,350.48 : 213,007.68 = 86,365.20 : x
  2. Step 2: Convert to fraction form
    154,350.48/213,007.68 = 86,365.20/x
  3. Step 3: Cross multiply
    154,350.48x = 213,007.68 × 86,365.20
  4. Step 4: Simplify right side
    154,350.48x = 18,396,450,884.74
  5. Step 5: Solve for x
    x = 18,396,450,884.74/154,350.48
  6. Step 6: Final answer
    x = 119,186.22

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1.5x scale

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.