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Finding the Fourth Proportional to 121,661.30, 182,492.38 and 37,420.89

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Solution

The fourth proportional to 121,661.30, 182,492.38 and 37,420.89 is: 56,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,661.30 : 182,492.38 = 37,420.89 : x
  2. Step 2: Convert to fraction form
    121,661.30/182,492.38 = 37,420.89/x
  3. Step 3: Cross multiply
    121,661.30x = 182,492.38 × 37,420.89
  4. Step 4: Simplify right side
    121,661.30x = 6,829,027,184.27
  5. Step 5: Solve for x
    x = 6,829,027,184.27/121,661.30
  6. Step 6: Final answer
    x = 56,131.47

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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.