Home / 186,290.75-257,081.27-101,408.45

Finding the Fourth Proportional to 186,290.75, 257,081.27 and 101,408.45

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Solution

The fourth proportional to 186,290.75, 257,081.27 and 101,408.45 is: 139,943.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,290.75 : 257,081.27 = 101,408.45 : x
  2. Step 2: Convert to fraction form
    186,290.75/257,081.27 = 101,408.45/x
  3. Step 3: Cross multiply
    186,290.75x = 257,081.27 × 101,408.45
  4. Step 4: Simplify right side
    186,290.75x = 26,070,212,607.69
  5. Step 5: Solve for x
    x = 26,070,212,607.69/186,290.75
  6. Step 6: Final answer
    x = 139,943.68

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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.