Home / 135,036.08-186,346.68-74,603.60

Finding the Fourth Proportional to 135,036.08, 186,346.68 and 74,603.60

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Solution

The fourth proportional to 135,036.08, 186,346.68 and 74,603.60 is: 102,951.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,036.08 : 186,346.68 = 74,603.60 : x
  2. Step 2: Convert to fraction form
    135,036.08/186,346.68 = 74,603.60/x
  3. Step 3: Cross multiply
    135,036.08x = 186,346.68 × 74,603.60
  4. Step 4: Simplify right side
    135,036.08x = 13,902,133,176.05
  5. Step 5: Solve for x
    x = 13,902,133,176.05/135,036.08
  6. Step 6: Final answer
    x = 102,951.25

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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.