Home / 105,050.70-144,969.42-57,303.63

Finding the Fourth Proportional to 105,050.70, 144,969.42 and 57,303.63

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Solution

The fourth proportional to 105,050.70, 144,969.42 and 57,303.63 is: 79,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,050.70 : 144,969.42 = 57,303.63 : x
  2. Step 2: Convert to fraction form
    105,050.70/144,969.42 = 57,303.63/x
  3. Step 3: Cross multiply
    105,050.70x = 144,969.42 × 57,303.63
  4. Step 4: Simplify right side
    105,050.70x = 8,307,274,004.99
  5. Step 5: Solve for x
    x = 8,307,274,004.99/105,050.70
  6. Step 6: Final answer
    x = 79,078.71

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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.