Home / 104,877.37-144,730.42-57,130.57

Finding the Fourth Proportional to 104,877.37, 144,730.42 and 57,130.57

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Solution

The fourth proportional to 104,877.37, 144,730.42 and 57,130.57 is: 78,840.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,877.37 : 144,730.42 = 57,130.57 : x
  2. Step 2: Convert to fraction form
    104,877.37/144,730.42 = 57,130.57/x
  3. Step 3: Cross multiply
    104,877.37x = 144,730.42 × 57,130.57
  4. Step 4: Simplify right side
    104,877.37x = 8,268,531,390.94
  5. Step 5: Solve for x
    x = 8,268,531,390.94/104,877.37
  6. Step 6: Final answer
    x = 78,840.00

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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.