Home / 106,238.80-159,342.40-39,670.57

Finding the Fourth Proportional to 106,238.80, 159,342.40 and 39,670.57

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Solution

The fourth proportional to 106,238.80, 159,342.40 and 39,670.57 is: 59,499.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,238.80 : 159,342.40 = 39,670.57 : x
  2. Step 2: Convert to fraction form
    106,238.80/159,342.40 = 39,670.57/x
  3. Step 3: Cross multiply
    106,238.80x = 159,342.40 × 39,670.57
  4. Step 4: Simplify right side
    106,238.80x = 6,321,203,833.17
  5. Step 5: Solve for x
    x = 6,321,203,833.17/106,238.80
  6. Step 6: Final answer
    x = 59,499.96

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1.5x scale

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.