Home / 186,386.86-257,204.73-105,803.61

Finding the Fourth Proportional to 186,386.86, 257,204.73 and 105,803.61

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Solution

The fourth proportional to 186,386.86, 257,204.73 and 105,803.61 is: 146,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,386.86 : 257,204.73 = 105,803.61 : x
  2. Step 2: Convert to fraction form
    186,386.86/257,204.73 = 105,803.61/x
  3. Step 3: Cross multiply
    186,386.86x = 257,204.73 × 105,803.61
  4. Step 4: Simplify right side
    186,386.86x = 27,213,188,943.08
  5. Step 5: Solve for x
    x = 27,213,188,943.08/186,386.86
  6. Step 6: Final answer
    x = 146,003.80

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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.