Home / 103,103.06-142,292.21-57,788.74

Finding the Fourth Proportional to 103,103.06, 142,292.21 and 57,788.74

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Solution

The fourth proportional to 103,103.06, 142,292.21 and 57,788.74 is: 79,754.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,103.06 : 142,292.21 = 57,788.74 : x
  2. Step 2: Convert to fraction form
    103,103.06/142,292.21 = 57,788.74/x
  3. Step 3: Cross multiply
    103,103.06x = 142,292.21 × 57,788.74
  4. Step 4: Simplify right side
    103,103.06x = 8,222,887,527.72
  5. Step 5: Solve for x
    x = 8,222,887,527.72/103,103.06
  6. Step 6: Final answer
    x = 79,754.06

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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.