Home / 186,396.12-257,235.75-105,822.18

Finding the Fourth Proportional to 186,396.12, 257,235.75 and 105,822.18

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Solution

The fourth proportional to 186,396.12, 257,235.75 and 105,822.18 is: 146,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,396.12 : 257,235.75 = 105,822.18 : x
  2. Step 2: Convert to fraction form
    186,396.12/257,235.75 = 105,822.18/x
  3. Step 3: Cross multiply
    186,396.12x = 257,235.75 × 105,822.18
  4. Step 4: Simplify right side
    186,396.12x = 27,221,247,838.94
  5. Step 5: Solve for x
    x = 27,221,247,838.94/186,396.12
  6. Step 6: Final answer
    x = 146,039.78

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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.