Home / 108,837.84-163,256.40-61,431.44

Finding the Fourth Proportional to 108,837.84, 163,256.40 and 61,431.44

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Solution

The fourth proportional to 108,837.84, 163,256.40 and 61,431.44 is: 92,146.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,837.84 : 163,256.40 = 61,431.44 : x
  2. Step 2: Convert to fraction form
    108,837.84/163,256.40 = 61,431.44/x
  3. Step 3: Cross multiply
    108,837.84x = 163,256.40 × 61,431.44
  4. Step 4: Simplify right side
    108,837.84x = 10,029,075,741.22
  5. Step 5: Solve for x
    x = 10,029,075,741.22/108,837.84
  6. Step 6: Final answer
    x = 92,146.96

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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.