Home / 125,904.63-173,822.31-78,184.29

Finding the Fourth Proportional to 125,904.63, 173,822.31 and 78,184.29

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Solution

The fourth proportional to 125,904.63, 173,822.31 and 78,184.29 is: 107,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,904.63 : 173,822.31 = 78,184.29 : x
  2. Step 2: Convert to fraction form
    125,904.63/173,822.31 = 78,184.29/x
  3. Step 3: Cross multiply
    125,904.63x = 173,822.31 × 78,184.29
  4. Step 4: Simplify right side
    125,904.63x = 13,590,173,893.51
  5. Step 5: Solve for x
    x = 13,590,173,893.51/125,904.63
  6. Step 6: Final answer
    x = 107,940.22

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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.