Home / 120,985.14-181,514.60-61,862.34

Finding the Fourth Proportional to 120,985.14, 181,514.60 and 61,862.34

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Solution

The fourth proportional to 120,985.14, 181,514.60 and 61,862.34 is: 92,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,985.14 : 181,514.60 = 61,862.34 : x
  2. Step 2: Convert to fraction form
    120,985.14/181,514.60 = 61,862.34/x
  3. Step 3: Cross multiply
    120,985.14x = 181,514.60 × 61,862.34
  4. Step 4: Simplify right side
    120,985.14x = 11,228,917,900.16
  5. Step 5: Solve for x
    x = 11,228,917,900.16/120,985.14
  6. Step 6: Final answer
    x = 92,812.37

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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.