Home / 137,829.22-190,208.93-77,410.51

Finding the Fourth Proportional to 137,829.22, 190,208.93 and 77,410.51

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Solution

The fourth proportional to 137,829.22, 190,208.93 and 77,410.51 is: 106,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,829.22 : 190,208.93 = 77,410.51 : x
  2. Step 2: Convert to fraction form
    137,829.22/190,208.93 = 77,410.51/x
  3. Step 3: Cross multiply
    137,829.22x = 190,208.93 × 77,410.51
  4. Step 4: Simplify right side
    137,829.22x = 14,724,169,415.28
  5. Step 5: Solve for x
    x = 14,724,169,415.28/137,829.22
  6. Step 6: Final answer
    x = 106,829.09

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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.