Home / 104,905.56-144,767.85-57,159.30

Finding the Fourth Proportional to 104,905.56, 144,767.85 and 57,159.30

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Solution

The fourth proportional to 104,905.56, 144,767.85 and 57,159.30 is: 78,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,905.56 : 144,767.85 = 57,159.30 : x
  2. Step 2: Convert to fraction form
    104,905.56/144,767.85 = 57,159.30/x
  3. Step 3: Cross multiply
    104,905.56x = 144,767.85 × 57,159.30
  4. Step 4: Simplify right side
    104,905.56x = 8,274,828,968.51
  5. Step 5: Solve for x
    x = 8,274,828,968.51/104,905.56
  6. Step 6: Final answer
    x = 78,878.84

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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.