Home / 158,530.21-218,773.47-90,556.16

Finding the Fourth Proportional to 158,530.21, 218,773.47 and 90,556.16

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Solution

The fourth proportional to 158,530.21, 218,773.47 and 90,556.16 is: 124,968.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,530.21 : 218,773.47 = 90,556.16 : x
  2. Step 2: Convert to fraction form
    158,530.21/218,773.47 = 90,556.16/x
  3. Step 3: Cross multiply
    158,530.21x = 218,773.47 × 90,556.16
  4. Step 4: Simplify right side
    158,530.21x = 19,811,285,353.08
  5. Step 5: Solve for x
    x = 19,811,285,353.08/158,530.21
  6. Step 6: Final answer
    x = 124,968.52

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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.