Home / 189,518.09-261,535.46-103,477.19

Finding the Fourth Proportional to 189,518.09, 261,535.46 and 103,477.19

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Solution

The fourth proportional to 189,518.09, 261,535.46 and 103,477.19 is: 142,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,518.09 : 261,535.46 = 103,477.19 : x
  2. Step 2: Convert to fraction form
    189,518.09/261,535.46 = 103,477.19/x
  3. Step 3: Cross multiply
    189,518.09x = 261,535.46 × 103,477.19
  4. Step 4: Simplify right side
    189,518.09x = 27,062,952,661.09
  5. Step 5: Solve for x
    x = 27,062,952,661.09/189,518.09
  6. Step 6: Final answer
    x = 142,798.79

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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.