Home / 139,549.39-192,579.70-75,887.19

Finding the Fourth Proportional to 139,549.39, 192,579.70 and 75,887.19

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Solution

The fourth proportional to 139,549.39, 192,579.70 and 75,887.19 is: 104,725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,549.39 : 192,579.70 = 75,887.19 : x
  2. Step 2: Convert to fraction form
    139,549.39/192,579.70 = 75,887.19/x
  3. Step 3: Cross multiply
    139,549.39x = 192,579.70 × 75,887.19
  4. Step 4: Simplify right side
    139,549.39x = 14,614,332,720.86
  5. Step 5: Solve for x
    x = 14,614,332,720.86/139,549.39
  6. Step 6: Final answer
    x = 104,725.16

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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.