Home / 190,209.08-262,485.29-105,324.32

Finding the Fourth Proportional to 190,209.08, 262,485.29 and 105,324.32

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Solution

The fourth proportional to 190,209.08, 262,485.29 and 105,324.32 is: 145,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,209.08 : 262,485.29 = 105,324.32 : x
  2. Step 2: Convert to fraction form
    190,209.08/262,485.29 = 105,324.32/x
  3. Step 3: Cross multiply
    190,209.08x = 262,485.29 × 105,324.32
  4. Step 4: Simplify right side
    190,209.08x = 27,646,085,598.78
  5. Step 5: Solve for x
    x = 27,646,085,598.78/190,209.08
  6. Step 6: Final answer
    x = 145,345.77

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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.