Home / 129,674.10-178,955.26-73,084.26

Finding the Fourth Proportional to 129,674.10, 178,955.26 and 73,084.26

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Solution

The fourth proportional to 129,674.10, 178,955.26 and 73,084.26 is: 100,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,674.10 : 178,955.26 = 73,084.26 : x
  2. Step 2: Convert to fraction form
    129,674.10/178,955.26 = 73,084.26/x
  3. Step 3: Cross multiply
    129,674.10x = 178,955.26 × 73,084.26
  4. Step 4: Simplify right side
    129,674.10x = 13,078,812,750.21
  5. Step 5: Solve for x
    x = 13,078,812,750.21/129,674.10
  6. Step 6: Final answer
    x = 100,859.10

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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.