Home / 115,653.94-159,514.36-99,548.64

Finding the Fourth Proportional to 115,653.94, 159,514.36 and 99,548.64

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Solution

The fourth proportional to 115,653.94, 159,514.36 and 99,548.64 is: 137,301.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,653.94 : 159,514.36 = 99,548.64 : x
  2. Step 2: Convert to fraction form
    115,653.94/159,514.36 = 99,548.64/x
  3. Step 3: Cross multiply
    115,653.94x = 159,514.36 × 99,548.64
  4. Step 4: Simplify right side
    115,653.94x = 15,879,437,598.47
  5. Step 5: Solve for x
    x = 15,879,437,598.47/115,653.94
  6. Step 6: Final answer
    x = 137,301.31

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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.