Home / 105,002.47-144,900.21-57,256.75

Finding the Fourth Proportional to 105,002.47, 144,900.21 and 57,256.75

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Solution

The fourth proportional to 105,002.47, 144,900.21 and 57,256.75 is: 79,012.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,002.47 : 144,900.21 = 57,256.75 : x
  2. Step 2: Convert to fraction form
    105,002.47/144,900.21 = 57,256.75/x
  3. Step 3: Cross multiply
    105,002.47x = 144,900.21 × 57,256.75
  4. Step 4: Simplify right side
    105,002.47x = 8,296,515,098.92
  5. Step 5: Solve for x
    x = 8,296,515,098.92/105,002.47
  6. Step 6: Final answer
    x = 79,012.57

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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.