Home / 105,836.22-159,067.80-70,417.76

Finding the Fourth Proportional to 105,836.22, 159,067.80 and 70,417.76

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Solution

The fourth proportional to 105,836.22, 159,067.80 and 70,417.76 is: 105,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,836.22 : 159,067.80 = 70,417.76 : x
  2. Step 2: Convert to fraction form
    105,836.22/159,067.80 = 70,417.76/x
  3. Step 3: Cross multiply
    105,836.22x = 159,067.80 × 70,417.76
  4. Step 4: Simplify right side
    105,836.22x = 11,201,197,368.79
  5. Step 5: Solve for x
    x = 11,201,197,368.79/105,836.22
  6. Step 6: Final answer
    x = 105,835.20

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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.