Home / 186,403.62-257,228.16-105,820.50

Finding the Fourth Proportional to 186,403.62, 257,228.16 and 105,820.50

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Solution

The fourth proportional to 186,403.62, 257,228.16 and 105,820.50 is: 146,027.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,403.62 : 257,228.16 = 105,820.50 : x
  2. Step 2: Convert to fraction form
    186,403.62/257,228.16 = 105,820.50/x
  3. Step 3: Cross multiply
    186,403.62x = 257,228.16 × 105,820.50
  4. Step 4: Simplify right side
    186,403.62x = 27,220,012,505.28
  5. Step 5: Solve for x
    x = 27,220,012,505.28/186,403.62
  6. Step 6: Final answer
    x = 146,027.27

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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.