Home / 127,987.24-191,980.80-68,741.40

Finding the Fourth Proportional to 127,987.24, 191,980.80 and 68,741.40

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Solution

The fourth proportional to 127,987.24, 191,980.80 and 68,741.40 is: 103,112.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,987.24 : 191,980.80 = 68,741.40 : x
  2. Step 2: Convert to fraction form
    127,987.24/191,980.80 = 68,741.40/x
  3. Step 3: Cross multiply
    127,987.24x = 191,980.80 × 68,741.40
  4. Step 4: Simplify right side
    127,987.24x = 13,197,028,965.12
  5. Step 5: Solve for x
    x = 13,197,028,965.12/127,987.24
  6. Step 6: Final answer
    x = 103,112.07

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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.