Home / 111,477.48-153,828.77-66,147.66

Finding the Fourth Proportional to 111,477.48, 153,828.77 and 66,147.66

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Solution

The fourth proportional to 111,477.48, 153,828.77 and 66,147.66 is: 91,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,477.48 : 153,828.77 = 66,147.66 : x
  2. Step 2: Convert to fraction form
    111,477.48/153,828.77 = 66,147.66/x
  3. Step 3: Cross multiply
    111,477.48x = 153,828.77 × 66,147.66
  4. Step 4: Simplify right side
    111,477.48x = 10,175,412,845.44
  5. Step 5: Solve for x
    x = 10,175,412,845.44/111,477.48
  6. Step 6: Final answer
    x = 91,277.74

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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.