Home / 101,743.06-140,405.43-56,427.97

Finding the Fourth Proportional to 101,743.06, 140,405.43 and 56,427.97

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Solution

The fourth proportional to 101,743.06, 140,405.43 and 56,427.97 is: 77,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,743.06 : 140,405.43 = 56,427.97 : x
  2. Step 2: Convert to fraction form
    101,743.06/140,405.43 = 56,427.97/x
  3. Step 3: Cross multiply
    101,743.06x = 140,405.43 × 56,427.97
  4. Step 4: Simplify right side
    101,743.06x = 7,922,793,391.88
  5. Step 5: Solve for x
    x = 7,922,793,391.88/101,743.06
  6. Step 6: Final answer
    x = 77,870.60

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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.