Home / 129,307.72-193,961.58-35,811.40

Finding the Fourth Proportional to 129,307.72, 193,961.58 and 35,811.40

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Solution

The fourth proportional to 129,307.72, 193,961.58 and 35,811.40 is: 53,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,307.72 : 193,961.58 = 35,811.40 : x
  2. Step 2: Convert to fraction form
    129,307.72/193,961.58 = 35,811.40/x
  3. Step 3: Cross multiply
    129,307.72x = 193,961.58 × 35,811.40
  4. Step 4: Simplify right side
    129,307.72x = 6,946,035,726.01
  5. Step 5: Solve for x
    x = 6,946,035,726.01/129,307.72
  6. Step 6: Final answer
    x = 53,717.10

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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.