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Finding the Fourth Proportional to 129,602.90, 194,404.35 and 36,108.65

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Solution

The fourth proportional to 129,602.90, 194,404.35 and 36,108.65 is: 54,162.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,602.90 : 194,404.35 = 36,108.65 : x
  2. Step 2: Convert to fraction form
    129,602.90/194,404.35 = 36,108.65/x
  3. Step 3: Cross multiply
    129,602.90x = 194,404.35 × 36,108.65
  4. Step 4: Simplify right side
    129,602.90x = 7,019,678,632.63
  5. Step 5: Solve for x
    x = 7,019,678,632.63/129,602.90
  6. Step 6: Final answer
    x = 54,162.98

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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.