Home / 135,392.83-186,845.70-74,968.77

Finding the Fourth Proportional to 135,392.83, 186,845.70 and 74,968.77

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Solution

The fourth proportional to 135,392.83, 186,845.70 and 74,968.77 is: 103,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,392.83 : 186,845.70 = 74,968.77 : x
  2. Step 2: Convert to fraction form
    135,392.83/186,845.70 = 74,968.77/x
  3. Step 3: Cross multiply
    135,392.83x = 186,845.70 × 74,968.77
  4. Step 4: Simplify right side
    135,392.83x = 14,007,592,308.79
  5. Step 5: Solve for x
    x = 14,007,592,308.79/135,392.83
  6. Step 6: Final answer
    x = 103,458.89

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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.