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Finding the Fourth Proportional to 121,663.57, 182,512.82 and 37,430.81

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Solution

The fourth proportional to 121,663.57, 182,512.82 and 37,430.81 is: 56,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,663.57 : 182,512.82 = 37,430.81 : x
  2. Step 2: Convert to fraction form
    121,663.57/182,512.82 = 37,430.81/x
  3. Step 3: Cross multiply
    121,663.57x = 182,512.82 × 37,430.81
  4. Step 4: Simplify right side
    121,663.57x = 6,831,602,687.98
  5. Step 5: Solve for x
    x = 6,831,602,687.98/121,663.57
  6. Step 6: Final answer
    x = 56,151.59

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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.