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Finding the Fourth Proportional to 82,390.30, 113,613.03 and 70,493.02

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Solution

The fourth proportional to 82,390.30, 113,613.03 and 70,493.02 is: 97,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,390.30 : 113,613.03 = 70,493.02 : x
  2. Step 2: Convert to fraction form
    82,390.30/113,613.03 = 70,493.02/x
  3. Step 3: Cross multiply
    82,390.30x = 113,613.03 × 70,493.02
  4. Step 4: Simplify right side
    82,390.30x = 8,008,925,596.05
  5. Step 5: Solve for x
    x = 8,008,925,596.05/82,390.30
  6. Step 6: Final answer
    x = 97,207.14

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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.