Home / 105,054.45-144,974.61-57,307.38

Finding the Fourth Proportional to 105,054.45, 144,974.61 and 57,307.38

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Solution

The fourth proportional to 105,054.45, 144,974.61 and 57,307.38 is: 79,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,054.45 : 144,974.61 = 57,307.38 : x
  2. Step 2: Convert to fraction form
    105,054.45/144,974.61 = 57,307.38/x
  3. Step 3: Cross multiply
    105,054.45x = 144,974.61 × 57,307.38
  4. Step 4: Simplify right side
    105,054.45x = 8,308,115,065.62
  5. Step 5: Solve for x
    x = 8,308,115,065.62/105,054.45
  6. Step 6: Final answer
    x = 79,083.89

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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.