Home / 190,862.51-263,402.13-105,980.18

Finding the Fourth Proportional to 190,862.51, 263,402.13 and 105,980.18

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Solution

The fourth proportional to 190,862.51, 263,402.13 and 105,980.18 is: 146,259.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,862.51 : 263,402.13 = 105,980.18 : x
  2. Step 2: Convert to fraction form
    190,862.51/263,402.13 = 105,980.18/x
  3. Step 3: Cross multiply
    190,862.51x = 263,402.13 × 105,980.18
  4. Step 4: Simplify right side
    190,862.51x = 27,915,405,149.78
  5. Step 5: Solve for x
    x = 27,915,405,149.78/190,862.51
  6. Step 6: Final answer
    x = 146,259.24

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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.