Home / 104,930.40-144,799.73-57,182.72

Finding the Fourth Proportional to 104,930.40, 144,799.73 and 57,182.72

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Solution

The fourth proportional to 104,930.40, 144,799.73 and 57,182.72 is: 78,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,930.40 : 144,799.73 = 57,182.72 : x
  2. Step 2: Convert to fraction form
    104,930.40/144,799.73 = 57,182.72/x
  3. Step 3: Cross multiply
    104,930.40x = 144,799.73 × 57,182.72
  4. Step 4: Simplify right side
    104,930.40x = 8,280,042,416.67
  5. Step 5: Solve for x
    x = 8,280,042,416.67/104,930.40
  6. Step 6: Final answer
    x = 78,909.85

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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.