Home / 107,215.19-148,051.01-66,997.68

Finding the Fourth Proportional to 107,215.19, 148,051.01 and 66,997.68

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Solution

The fourth proportional to 107,215.19, 148,051.01 and 66,997.68 is: 92,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,215.19 : 148,051.01 = 66,997.68 : x
  2. Step 2: Convert to fraction form
    107,215.19/148,051.01 = 66,997.68/x
  3. Step 3: Cross multiply
    107,215.19x = 148,051.01 × 66,997.68
  4. Step 4: Simplify right side
    107,215.19x = 9,919,074,191.66
  5. Step 5: Solve for x
    x = 9,919,074,191.66/107,215.19
  6. Step 6: Final answer
    x = 92,515.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.