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Finding the Fourth Proportional to 144,484.98, 199,420.32 and 87,914.58

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Solution

The fourth proportional to 144,484.98, 199,420.32 and 87,914.58 is: 121,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,484.98 : 199,420.32 = 87,914.58 : x
  2. Step 2: Convert to fraction form
    144,484.98/199,420.32 = 87,914.58/x
  3. Step 3: Cross multiply
    144,484.98x = 199,420.32 × 87,914.58
  4. Step 4: Simplify right side
    144,484.98x = 17,531,953,676.27
  5. Step 5: Solve for x
    x = 17,531,953,676.27/144,484.98
  6. Step 6: Final answer
    x = 121,341.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.