Home / 105,065.06-144,986.90-57,318.39

Finding the Fourth Proportional to 105,065.06, 144,986.90 and 57,318.39

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Solution

The fourth proportional to 105,065.06, 144,986.90 and 57,318.39 is: 79,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,065.06 : 144,986.90 = 57,318.39 : x
  2. Step 2: Convert to fraction form
    105,065.06/144,986.90 = 57,318.39/x
  3. Step 3: Cross multiply
    105,065.06x = 144,986.90 × 57,318.39
  4. Step 4: Simplify right side
    105,065.06x = 8,310,415,392.50
  5. Step 5: Solve for x
    x = 8,310,415,392.50/105,065.06
  6. Step 6: Final answer
    x = 79,097.81

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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.