Home / 100,879,940.20-151,001,045.70-72,182,126.20

Finding the Fourth Proportional to 100,879,940.20, 151,001,045.70 and 72,182,126.20

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Solution

The fourth proportional to 100,879,940.20, 151,001,045.70 and 72,182,126.20 is: 108,045,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,879,940.20 : 151,001,045.70 = 72,182,126.20 : x
  2. Step 2: Convert to fraction form
    100,879,940.20/151,001,045.70 = 72,182,126.20/x
  3. Step 3: Cross multiply
    100,879,940.20x = 151,001,045.70 × 72,182,126.20
  4. Step 4: Simplify right side
    100,879,940.20x = 10,899,576,537,049,366
  5. Step 5: Solve for x
    x = 10,899,576,537,049,366/100,879,940.20
  6. Step 6: Final answer
    x = 108,045,033.68

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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.