Home / 105,063.87-144,985.26-57,317.21

Finding the Fourth Proportional to 105,063.87, 144,985.26 and 57,317.21

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Solution

The fourth proportional to 105,063.87, 144,985.26 and 57,317.21 is: 79,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,063.87 : 144,985.26 = 57,317.21 : x
  2. Step 2: Convert to fraction form
    105,063.87/144,985.26 = 57,317.21/x
  3. Step 3: Cross multiply
    105,063.87x = 144,985.26 × 57,317.21
  4. Step 4: Simplify right side
    105,063.87x = 8,310,149,869.40
  5. Step 5: Solve for x
    x = 8,310,149,869.40/105,063.87
  6. Step 6: Final answer
    x = 79,096.17

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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.