Home / 129,314.64-178,427.46-75,589.26

Finding the Fourth Proportional to 129,314.64, 178,427.46 and 75,589.26

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Solution

The fourth proportional to 129,314.64, 178,427.46 and 75,589.26 is: 104,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,314.64 : 178,427.46 = 75,589.26 : x
  2. Step 2: Convert to fraction form
    129,314.64/178,427.46 = 75,589.26/x
  3. Step 3: Cross multiply
    129,314.64x = 178,427.46 × 75,589.26
  4. Step 4: Simplify right side
    129,314.64x = 13,487,199,665.08
  5. Step 5: Solve for x
    x = 13,487,199,665.08/129,314.64
  6. Step 6: Final answer
    x = 104,297.55

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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.