Home / 186,345.44-257,159.81-105,775.43

Finding the Fourth Proportional to 186,345.44, 257,159.81 and 105,775.43

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Solution

The fourth proportional to 186,345.44, 257,159.81 and 105,775.43 is: 145,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,345.44 : 257,159.81 = 105,775.43 : x
  2. Step 2: Convert to fraction form
    186,345.44/257,159.81 = 105,775.43/x
  3. Step 3: Cross multiply
    186,345.44x = 257,159.81 × 105,775.43
  4. Step 4: Simplify right side
    186,345.44x = 27,201,190,388.81
  5. Step 5: Solve for x
    x = 27,201,190,388.81/186,345.44
  6. Step 6: Final answer
    x = 145,971.86

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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.