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Finding the Fourth Proportional to 135,341.33, 186,771.45 and 74,916.17

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Solution

The fourth proportional to 135,341.33, 186,771.45 and 74,916.17 is: 103,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,341.33 : 186,771.45 = 74,916.17 : x
  2. Step 2: Convert to fraction form
    135,341.33/186,771.45 = 74,916.17/x
  3. Step 3: Cross multiply
    135,341.33x = 186,771.45 × 74,916.17
  4. Step 4: Simplify right side
    135,341.33x = 13,992,201,699.35
  5. Step 5: Solve for x
    x = 13,992,201,699.35/135,341.33
  6. Step 6: Final answer
    x = 103,384.54

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1.5x scale

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.