Home / 92,886.21-128,236.10-61,147.37

Finding the Fourth Proportional to 92,886.21, 128,236.10 and 61,147.37

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Solution

The fourth proportional to 92,886.21, 128,236.10 and 61,147.37 is: 84,418.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,886.21 : 128,236.10 = 61,147.37 : x
  2. Step 2: Convert to fraction form
    92,886.21/128,236.10 = 61,147.37/x
  3. Step 3: Cross multiply
    92,886.21x = 128,236.10 × 61,147.37
  4. Step 4: Simplify right side
    92,886.21x = 7,841,299,307.14
  5. Step 5: Solve for x
    x = 7,841,299,307.14/92,886.21
  6. Step 6: Final answer
    x = 84,418.34

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1.5x scale

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.