Home / 135,384.66-186,804.36-85,054.50

Finding the Fourth Proportional to 135,384.66, 186,804.36 and 85,054.50

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Solution

The fourth proportional to 135,384.66, 186,804.36 and 85,054.50 is: 117,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,384.66 : 186,804.36 = 85,054.50 : x
  2. Step 2: Convert to fraction form
    135,384.66/186,804.36 = 85,054.50/x
  3. Step 3: Cross multiply
    135,384.66x = 186,804.36 × 85,054.50
  4. Step 4: Simplify right side
    135,384.66x = 15,888,551,437.62
  5. Step 5: Solve for x
    x = 15,888,551,437.62/135,384.66
  6. Step 6: Final answer
    x = 117,358.58

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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.