Home / 111,455.36-153,800.88-61,157.60

Finding the Fourth Proportional to 111,455.36, 153,800.88 and 61,157.60

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Solution

The fourth proportional to 111,455.36, 153,800.88 and 61,157.60 is: 84,393.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,455.36 : 153,800.88 = 61,157.60 : x
  2. Step 2: Convert to fraction form
    111,455.36/153,800.88 = 61,157.60/x
  3. Step 3: Cross multiply
    111,455.36x = 153,800.88 × 61,157.60
  4. Step 4: Simplify right side
    111,455.36x = 9,406,092,698.69
  5. Step 5: Solve for x
    x = 9,406,092,698.69/111,455.36
  6. Step 6: Final answer
    x = 84,393.36

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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.