Home / 102,628.26-141,609.24-57,303.90

Finding the Fourth Proportional to 102,628.26, 141,609.24 and 57,303.90

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Solution

The fourth proportional to 102,628.26, 141,609.24 and 57,303.90 is: 79,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,628.26 : 141,609.24 = 57,303.90 : x
  2. Step 2: Convert to fraction form
    102,628.26/141,609.24 = 57,303.90/x
  3. Step 3: Cross multiply
    102,628.26x = 141,609.24 × 57,303.90
  4. Step 4: Simplify right side
    102,628.26x = 8,114,761,728.04
  5. Step 5: Solve for x
    x = 8,114,761,728.04/102,628.26
  6. Step 6: Final answer
    x = 79,069.47

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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.