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Finding the Fourth Proportional to 129,303, 194,031.45 and 59,187.78

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Solution

The fourth proportional to 129,303, 194,031.45 and 59,187.78 is: 88,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,303 : 194,031.45 = 59,187.78 : x
  2. Step 2: Convert to fraction form
    129,303/194,031.45 = 59,187.78/x
  3. Step 3: Cross multiply
    129,303x = 194,031.45 × 59,187.78
  4. Step 4: Simplify right side
    129,303x = 11,484,290,775.68
  5. Step 5: Solve for x
    x = 11,484,290,775.68/129,303
  6. Step 6: Final answer
    x = 88,816.89

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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.