Home / 111,850.23-154,351.65-66,550.17

Finding the Fourth Proportional to 111,850.23, 154,351.65 and 66,550.17

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Solution

The fourth proportional to 111,850.23, 154,351.65 and 66,550.17 is: 91,838.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,850.23 : 154,351.65 = 66,550.17 : x
  2. Step 2: Convert to fraction form
    111,850.23/154,351.65 = 66,550.17/x
  3. Step 3: Cross multiply
    111,850.23x = 154,351.65 × 66,550.17
  4. Step 4: Simplify right side
    111,850.23x = 10,272,128,547.28
  5. Step 5: Solve for x
    x = 10,272,128,547.28/111,850.23
  6. Step 6: Final answer
    x = 91,838.24

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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.