Home / 158,925.44-219,321.20-90,009.36

Finding the Fourth Proportional to 158,925.44, 219,321.20 and 90,009.36

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Solution

The fourth proportional to 158,925.44, 219,321.20 and 90,009.36 is: 124,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,925.44 : 219,321.20 = 90,009.36 : x
  2. Step 2: Convert to fraction form
    158,925.44/219,321.20 = 90,009.36/x
  3. Step 3: Cross multiply
    158,925.44x = 219,321.20 × 90,009.36
  4. Step 4: Simplify right side
    158,925.44x = 19,740,960,846.43
  5. Step 5: Solve for x
    x = 19,740,960,846.43/158,925.44
  6. Step 6: Final answer
    x = 124,215.23

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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.