Home / 111,539.02-153,913.62-66,209.26

Finding the Fourth Proportional to 111,539.02, 153,913.62 and 66,209.26

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Solution

The fourth proportional to 111,539.02, 153,913.62 and 66,209.26 is: 91,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,539.02 : 153,913.62 = 66,209.26 : x
  2. Step 2: Convert to fraction form
    111,539.02/153,913.62 = 66,209.26/x
  3. Step 3: Cross multiply
    111,539.02x = 153,913.62 × 66,209.26
  4. Step 4: Simplify right side
    111,539.02x = 10,190,506,884.12
  5. Step 5: Solve for x
    x = 10,190,506,884.12/111,539.02
  6. Step 6: Final answer
    x = 91,362.71

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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.