Home / 129,438.80-194,158.20-46,302.80

Finding the Fourth Proportional to 129,438.80, 194,158.20 and 46,302.80

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Solution

The fourth proportional to 129,438.80, 194,158.20 and 46,302.80 is: 69,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,438.80 : 194,158.20 = 46,302.80 : x
  2. Step 2: Convert to fraction form
    129,438.80/194,158.20 = 46,302.80/x
  3. Step 3: Cross multiply
    129,438.80x = 194,158.20 × 46,302.80
  4. Step 4: Simplify right side
    129,438.80x = 8,990,068,302.96
  5. Step 5: Solve for x
    x = 8,990,068,302.96/129,438.80
  6. Step 6: Final answer
    x = 69,454.20

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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.