Home / 135,498.36-186,976.76-75,071.55

Finding the Fourth Proportional to 135,498.36, 186,976.76 and 75,071.55

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Solution

The fourth proportional to 135,498.36, 186,976.76 and 75,071.55 is: 103,592.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,498.36 : 186,976.76 = 75,071.55 : x
  2. Step 2: Convert to fraction form
    135,498.36/186,976.76 = 75,071.55/x
  3. Step 3: Cross multiply
    135,498.36x = 186,976.76 × 75,071.55
  4. Step 4: Simplify right side
    135,498.36x = 14,036,634,811.82
  5. Step 5: Solve for x
    x = 14,036,634,811.82/135,498.36
  6. Step 6: Final answer
    x = 103,592.65

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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.