Home / 129,629.64-194,444.46-40,890.07

Finding the Fourth Proportional to 129,629.64, 194,444.46 and 40,890.07

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Solution

The fourth proportional to 129,629.64, 194,444.46 and 40,890.07 is: 61,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,629.64 : 194,444.46 = 40,890.07 : x
  2. Step 2: Convert to fraction form
    129,629.64/194,444.46 = 40,890.07/x
  3. Step 3: Cross multiply
    129,629.64x = 194,444.46 × 40,890.07
  4. Step 4: Simplify right side
    129,629.64x = 7,950,847,580.51
  5. Step 5: Solve for x
    x = 7,950,847,580.51/129,629.64
  6. Step 6: Final answer
    x = 61,335.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.