Home / 186,317.88-257,118.78-101,435.28

Finding the Fourth Proportional to 186,317.88, 257,118.78 and 101,435.28

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Solution

The fourth proportional to 186,317.88, 257,118.78 and 101,435.28 is: 139,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,317.88 : 257,118.78 = 101,435.28 : x
  2. Step 2: Convert to fraction form
    186,317.88/257,118.78 = 101,435.28/x
  3. Step 3: Cross multiply
    186,317.88x = 257,118.78 × 101,435.28
  4. Step 4: Simplify right side
    186,317.88x = 26,080,915,442.56
  5. Step 5: Solve for x
    x = 26,080,915,442.56/186,317.88
  6. Step 6: Final answer
    x = 139,980.74

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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.