Home / 154,662.48-213,416.47-90,145.37

Finding the Fourth Proportional to 154,662.48, 213,416.47 and 90,145.37

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Solution

The fourth proportional to 154,662.48, 213,416.47 and 90,145.37 is: 124,390.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,662.48 : 213,416.47 = 90,145.37 : x
  2. Step 2: Convert to fraction form
    154,662.48/213,416.47 = 90,145.37/x
  3. Step 3: Cross multiply
    154,662.48x = 213,416.47 × 90,145.37
  4. Step 4: Simplify right side
    154,662.48x = 19,238,507,298.47
  5. Step 5: Solve for x
    x = 19,238,507,298.47/154,662.48
  6. Step 6: Final answer
    x = 124,390.27

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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.