Home / 230,844.36-318,525.75-128,864.55

Finding the Fourth Proportional to 230,844.36, 318,525.75 and 128,864.55

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Solution

The fourth proportional to 230,844.36, 318,525.75 and 128,864.55 is: 177,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,844.36 : 318,525.75 = 128,864.55 : x
  2. Step 2: Convert to fraction form
    230,844.36/318,525.75 = 128,864.55/x
  3. Step 3: Cross multiply
    230,844.36x = 318,525.75 × 128,864.55
  4. Step 4: Simplify right side
    230,844.36x = 41,046,677,437.16
  5. Step 5: Solve for x
    x = 41,046,677,437.16/230,844.36
  6. Step 6: Final answer
    x = 177,811.05

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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.