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Finding the Fourth Proportional to 124,890.96, 187,103.16 and 97,130.64

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Solution

The fourth proportional to 124,890.96, 187,103.16 and 97,130.64 is: 145,514.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,890.96 : 187,103.16 = 97,130.64 : x
  2. Step 2: Convert to fraction form
    124,890.96/187,103.16 = 97,130.64/x
  3. Step 3: Cross multiply
    124,890.96x = 187,103.16 × 97,130.64
  4. Step 4: Simplify right side
    124,890.96x = 18,173,449,676.82
  5. Step 5: Solve for x
    x = 18,173,449,676.82/124,890.96
  6. Step 6: Final answer
    x = 145,514.53

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Why These Related Problems?

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