Home / 135,345.37-186,771.85-74,916.13

Finding the Fourth Proportional to 135,345.37, 186,771.85 and 74,916.13

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Solution

The fourth proportional to 135,345.37, 186,771.85 and 74,916.13 is: 103,381.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,345.37 : 186,771.85 = 74,916.13 : x
  2. Step 2: Convert to fraction form
    135,345.37/186,771.85 = 74,916.13/x
  3. Step 3: Cross multiply
    135,345.37x = 186,771.85 × 74,916.13
  4. Step 4: Simplify right side
    135,345.37x = 13,992,224,194.94
  5. Step 5: Solve for x
    x = 13,992,224,194.94/135,345.37
  6. Step 6: Final answer
    x = 103,381.62

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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.