Home / 100,710.10-151,060.35-34,143.70

Finding the Fourth Proportional to 100,710.10, 151,060.35 and 34,143.70

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Solution

The fourth proportional to 100,710.10, 151,060.35 and 34,143.70 is: 51,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,710.10 : 151,060.35 = 34,143.70 : x
  2. Step 2: Convert to fraction form
    100,710.10/151,060.35 = 34,143.70/x
  3. Step 3: Cross multiply
    100,710.10x = 151,060.35 × 34,143.70
  4. Step 4: Simplify right side
    100,710.10x = 5,157,759,272.30
  5. Step 5: Solve for x
    x = 5,157,759,272.30/100,710.10
  6. Step 6: Final answer
    x = 51,213.92

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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.