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Finding the Fourth Proportional to 121,457.40, 182,113.20 and 62,408.40

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Solution

The fourth proportional to 121,457.40, 182,113.20 and 62,408.40 is: 93,575.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,457.40 : 182,113.20 = 62,408.40 : x
  2. Step 2: Convert to fraction form
    121,457.40/182,113.20 = 62,408.40/x
  3. Step 3: Cross multiply
    121,457.40x = 182,113.20 × 62,408.40
  4. Step 4: Simplify right side
    121,457.40x = 11,365,393,430.88
  5. Step 5: Solve for x
    x = 11,365,393,430.88/121,457.40
  6. Step 6: Final answer
    x = 93,575.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.