Home / 113,160.96-169,508.16-66,271.68

Finding the Fourth Proportional to 113,160.96, 169,508.16 and 66,271.68

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Solution

The fourth proportional to 113,160.96, 169,508.16 and 66,271.68 is: 99,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,160.96 : 169,508.16 = 66,271.68 : x
  2. Step 2: Convert to fraction form
    113,160.96/169,508.16 = 66,271.68/x
  3. Step 3: Cross multiply
    113,160.96x = 169,508.16 × 66,271.68
  4. Step 4: Simplify right side
    113,160.96x = 11,233,590,536.91
  5. Step 5: Solve for x
    x = 11,233,590,536.91/113,160.96
  6. Step 6: Final answer
    x = 99,270.90

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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.