Home / 98,141.40-135,424.98-55,125.72

Finding the Fourth Proportional to 98,141.40, 135,424.98 and 55,125.72

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Solution

The fourth proportional to 98,141.40, 135,424.98 and 55,125.72 is: 76,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,141.40 : 135,424.98 = 55,125.72 : x
  2. Step 2: Convert to fraction form
    98,141.40/135,424.98 = 55,125.72/x
  3. Step 3: Cross multiply
    98,141.40x = 135,424.98 × 55,125.72
  4. Step 4: Simplify right side
    98,141.40x = 7,465,399,528.49
  5. Step 5: Solve for x
    x = 7,465,399,528.49/98,141.40
  6. Step 6: Final answer
    x = 76,067.79

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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.