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Finding the Fourth Proportional to 115,438.50, 173,031.66 and 73,337.40

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Solution

The fourth proportional to 115,438.50, 173,031.66 and 73,337.40 is: 109,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,438.50 : 173,031.66 = 73,337.40 : x
  2. Step 2: Convert to fraction form
    115,438.50/173,031.66 = 73,337.40/x
  3. Step 3: Cross multiply
    115,438.50x = 173,031.66 × 73,337.40
  4. Step 4: Simplify right side
    115,438.50x = 12,689,692,062.08
  5. Step 5: Solve for x
    x = 12,689,692,062.08/115,438.50
  6. Step 6: Final answer
    x = 109,926.00

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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.