Home / 104,869.45-144,722.04-57,122.68

Finding the Fourth Proportional to 104,869.45, 144,722.04 and 57,122.68

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Solution

The fourth proportional to 104,869.45, 144,722.04 and 57,122.68 is: 78,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,869.45 : 144,722.04 = 57,122.68 : x
  2. Step 2: Convert to fraction form
    104,869.45/144,722.04 = 57,122.68/x
  3. Step 3: Cross multiply
    104,869.45x = 144,722.04 × 57,122.68
  4. Step 4: Simplify right side
    104,869.45x = 8,266,910,779.87
  5. Step 5: Solve for x
    x = 8,266,910,779.87/104,869.45
  6. Step 6: Final answer
    x = 78,830.50

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1.5x scale

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.