Home / 137,788.35-190,146.27-77,357.49

Finding the Fourth Proportional to 137,788.35, 190,146.27 and 77,357.49

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Solution

The fourth proportional to 137,788.35, 190,146.27 and 77,357.49 is: 106,752.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,788.35 : 190,146.27 = 77,357.49 : x
  2. Step 2: Convert to fraction form
    137,788.35/190,146.27 = 77,357.49/x
  3. Step 3: Cross multiply
    137,788.35x = 190,146.27 × 77,357.49
  4. Step 4: Simplify right side
    137,788.35x = 14,709,238,180.06
  5. Step 5: Solve for x
    x = 14,709,238,180.06/137,788.35
  6. Step 6: Final answer
    x = 106,752.41

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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.