Home / 110,007.09-151,783.47-66,986.10

Finding the Fourth Proportional to 110,007.09, 151,783.47 and 66,986.10

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Solution

The fourth proportional to 110,007.09, 151,783.47 and 66,986.10 is: 92,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,007.09 : 151,783.47 = 66,986.10 : x
  2. Step 2: Convert to fraction form
    110,007.09/151,783.47 = 66,986.10/x
  3. Step 3: Cross multiply
    110,007.09x = 151,783.47 × 66,986.10
  4. Step 4: Simplify right side
    110,007.09x = 10,167,382,699.77
  5. Step 5: Solve for x
    x = 10,167,382,699.77/110,007.09
  6. Step 6: Final answer
    x = 92,424.79

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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.