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Finding the Fourth Proportional to 115,492.21, 173,238.31 and 43,458.66

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Solution

The fourth proportional to 115,492.21, 173,238.31 and 43,458.66 is: 65,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,492.21 : 173,238.31 = 43,458.66 : x
  2. Step 2: Convert to fraction form
    115,492.21/173,238.31 = 43,458.66/x
  3. Step 3: Cross multiply
    115,492.21x = 173,238.31 × 43,458.66
  4. Step 4: Simplify right side
    115,492.21x = 7,528,703,729.78
  5. Step 5: Solve for x
    x = 7,528,703,729.78/115,492.21
  6. Step 6: Final answer
    x = 65,187.98

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1.5x scale

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.