Home / 105,051.08-144,971.54-57,305.43

Finding the Fourth Proportional to 105,051.08, 144,971.54 and 57,305.43

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Solution

The fourth proportional to 105,051.08, 144,971.54 and 57,305.43 is: 79,082.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,051.08 : 144,971.54 = 57,305.43 : x
  2. Step 2: Convert to fraction form
    105,051.08/144,971.54 = 57,305.43/x
  3. Step 3: Cross multiply
    105,051.08x = 144,971.54 × 57,305.43
  4. Step 4: Simplify right side
    105,051.08x = 8,307,656,150.94
  5. Step 5: Solve for x
    x = 8,307,656,150.94/105,051.08
  6. Step 6: Final answer
    x = 79,082.07

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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.