Home / 140,445.77-193,916.63-86,804.33

Finding the Fourth Proportional to 140,445.77, 193,916.63 and 86,804.33

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Solution

The fourth proportional to 140,445.77, 193,916.63 and 86,804.33 is: 119,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,445.77 : 193,916.63 = 86,804.33 : x
  2. Step 2: Convert to fraction form
    140,445.77/193,916.63 = 86,804.33/x
  3. Step 3: Cross multiply
    140,445.77x = 193,916.63 × 86,804.33
  4. Step 4: Simplify right side
    140,445.77x = 16,832,802,390.44
  5. Step 5: Solve for x
    x = 16,832,802,390.44/140,445.77
  6. Step 6: Final answer
    x = 119,852.69

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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.