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Finding the Fourth Proportional to 112,709.34, 155,543.58 and 62,408.34

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Solution

The fourth proportional to 112,709.34, 155,543.58 and 62,408.34 is: 86,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,709.34 : 155,543.58 = 62,408.34 : x
  2. Step 2: Convert to fraction form
    112,709.34/155,543.58 = 62,408.34/x
  3. Step 3: Cross multiply
    112,709.34x = 155,543.58 × 62,408.34
  4. Step 4: Simplify right side
    112,709.34x = 9,707,216,625.46
  5. Step 5: Solve for x
    x = 9,707,216,625.46/112,709.34
  6. Step 6: Final answer
    x = 86,126.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.