Home / 157,825.20-236,530.40-74,742.96

Finding the Fourth Proportional to 157,825.20, 236,530.40 and 74,742.96

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Solution

The fourth proportional to 157,825.20, 236,530.40 and 74,742.96 is: 112,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,825.20 : 236,530.40 = 74,742.96 : x
  2. Step 2: Convert to fraction form
    157,825.20/236,530.40 = 74,742.96/x
  3. Step 3: Cross multiply
    157,825.20x = 236,530.40 × 74,742.96
  4. Step 4: Simplify right side
    157,825.20x = 17,678,982,225.98
  5. Step 5: Solve for x
    x = 17,678,982,225.98/157,825.20
  6. Step 6: Final answer
    x = 112,016.22

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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.