Home / 135,045.72-186,362.33-74,616.38

Finding the Fourth Proportional to 135,045.72, 186,362.33 and 74,616.38

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Solution

The fourth proportional to 135,045.72, 186,362.33 and 74,616.38 is: 102,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,045.72 : 186,362.33 = 74,616.38 : x
  2. Step 2: Convert to fraction form
    135,045.72/186,362.33 = 74,616.38/x
  3. Step 3: Cross multiply
    135,045.72x = 186,362.33 × 74,616.38
  4. Step 4: Simplify right side
    135,045.72x = 13,905,682,432.97
  5. Step 5: Solve for x
    x = 13,905,682,432.97/135,045.72
  6. Step 6: Final answer
    x = 102,970.18

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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.