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Finding the Fourth Proportional to 129,477.57, 194,014.90 and 49,471.91

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Solution

The fourth proportional to 129,477.57, 194,014.90 and 49,471.91 is: 74,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,477.57 : 194,014.90 = 49,471.91 : x
  2. Step 2: Convert to fraction form
    129,477.57/194,014.90 = 49,471.91/x
  3. Step 3: Cross multiply
    129,477.57x = 194,014.90 × 49,471.91
  4. Step 4: Simplify right side
    129,477.57x = 9,598,287,671.46
  5. Step 5: Solve for x
    x = 9,598,287,671.46/129,477.57
  6. Step 6: Final answer
    x = 74,130.89

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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.