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Finding the Fourth Proportional to 129,488.56, 194,232.84 and 46,440.88

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Solution

The fourth proportional to 129,488.56, 194,232.84 and 46,440.88 is: 69,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,488.56 : 194,232.84 = 46,440.88 : x
  2. Step 2: Convert to fraction form
    129,488.56/194,232.84 = 46,440.88/x
  3. Step 3: Cross multiply
    129,488.56x = 194,232.84 × 46,440.88
  4. Step 4: Simplify right side
    129,488.56x = 9,020,344,014.50
  5. Step 5: Solve for x
    x = 9,020,344,014.50/129,488.56
  6. Step 6: Final answer
    x = 69,661.32

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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.