Home / 159,124.08-238,686.12-75,765.36

Finding the Fourth Proportional to 159,124.08, 238,686.12 and 75,765.36

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Solution

The fourth proportional to 159,124.08, 238,686.12 and 75,765.36 is: 113,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,124.08 : 238,686.12 = 75,765.36 : x
  2. Step 2: Convert to fraction form
    159,124.08/238,686.12 = 75,765.36/x
  3. Step 3: Cross multiply
    159,124.08x = 238,686.12 × 75,765.36
  4. Step 4: Simplify right side
    159,124.08x = 18,084,139,808.80
  5. Step 5: Solve for x
    x = 18,084,139,808.80/159,124.08
  6. Step 6: Final answer
    x = 113,648.04

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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.