Home / 186,320.18-257,100.41-105,731.66

Finding the Fourth Proportional to 186,320.18, 257,100.41 and 105,731.66

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Solution

The fourth proportional to 186,320.18, 257,100.41 and 105,731.66 is: 145,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,320.18 : 257,100.41 = 105,731.66 : x
  2. Step 2: Convert to fraction form
    186,320.18/257,100.41 = 105,731.66/x
  3. Step 3: Cross multiply
    186,320.18x = 257,100.41 × 105,731.66
  4. Step 4: Simplify right side
    186,320.18x = 27,183,651,321.82
  5. Step 5: Solve for x
    x = 27,183,651,321.82/186,320.18
  6. Step 6: Final answer
    x = 145,897.52

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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.