Home / 135,316.08-186,736.55-74,890.89

Finding the Fourth Proportional to 135,316.08, 186,736.55 and 74,890.89

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Solution

The fourth proportional to 135,316.08, 186,736.55 and 74,890.89 is: 103,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,316.08 : 186,736.55 = 74,890.89 : x
  2. Step 2: Convert to fraction form
    135,316.08/186,736.55 = 74,890.89/x
  3. Step 3: Cross multiply
    135,316.08x = 186,736.55 × 74,890.89
  4. Step 4: Simplify right side
    135,316.08x = 13,984,866,425.03
  5. Step 5: Solve for x
    x = 13,984,866,425.03/135,316.08
  6. Step 6: Final answer
    x = 103,349.63

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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.