Home / 129,629.40-194,465.70-50,746.20

Finding the Fourth Proportional to 129,629.40, 194,465.70 and 50,746.20

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Solution

The fourth proportional to 129,629.40, 194,465.70 and 50,746.20 is: 76,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,629.40 : 194,465.70 = 50,746.20 : x
  2. Step 2: Convert to fraction form
    129,629.40/194,465.70 = 50,746.20/x
  3. Step 3: Cross multiply
    129,629.40x = 194,465.70 × 50,746.20
  4. Step 4: Simplify right side
    129,629.40x = 9,868,395,305.34
  5. Step 5: Solve for x
    x = 9,868,395,305.34/129,629.40
  6. Step 6: Final answer
    x = 76,127.76

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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.