Home / 190,139.13-262,392.06-105,256.19

Finding the Fourth Proportional to 190,139.13, 262,392.06 and 105,256.19

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Solution

The fourth proportional to 190,139.13, 262,392.06 and 105,256.19 is: 145,253.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,139.13 : 262,392.06 = 105,256.19 : x
  2. Step 2: Convert to fraction form
    190,139.13/262,392.06 = 105,256.19/x
  3. Step 3: Cross multiply
    190,139.13x = 262,392.06 × 105,256.19
  4. Step 4: Simplify right side
    190,139.13x = 27,618,387,209.89
  5. Step 5: Solve for x
    x = 27,618,387,209.89/190,139.13
  6. Step 6: Final answer
    x = 145,253.57

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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.