Home / 135,481.17-186,962.07-75,051.72

Finding the Fourth Proportional to 135,481.17, 186,962.07 and 75,051.72

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Solution

The fourth proportional to 135,481.17, 186,962.07 and 75,051.72 is: 103,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,481.17 : 186,962.07 = 75,051.72 : x
  2. Step 2: Convert to fraction form
    135,481.17/186,962.07 = 75,051.72/x
  3. Step 3: Cross multiply
    135,481.17x = 186,962.07 × 75,051.72
  4. Step 4: Simplify right side
    135,481.17x = 14,031,824,928.26
  5. Step 5: Solve for x
    x = 14,031,824,928.26/135,481.17
  6. Step 6: Final answer
    x = 103,570.30

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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.