Home / 137,922.51-190,327.77-77,495.70

Finding the Fourth Proportional to 137,922.51, 190,327.77 and 77,495.70

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Solution

The fourth proportional to 137,922.51, 190,327.77 and 77,495.70 is: 106,941.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,922.51 : 190,327.77 = 77,495.70 : x
  2. Step 2: Convert to fraction form
    137,922.51/190,327.77 = 77,495.70/x
  3. Step 3: Cross multiply
    137,922.51x = 190,327.77 × 77,495.70
  4. Step 4: Simplify right side
    137,922.51x = 14,749,584,479.32
  5. Step 5: Solve for x
    x = 14,749,584,479.32/137,922.51
  6. Step 6: Final answer
    x = 106,941.09

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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.