Home / 100,879,939.20-151,001,044.20-72,182,125.20

Finding the Fourth Proportional to 100,879,939.20, 151,001,044.20 and 72,182,125.20

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Solution

The fourth proportional to 100,879,939.20, 151,001,044.20 and 72,182,125.20 is: 108,045,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,879,939.20 : 151,001,044.20 = 72,182,125.20 : x
  2. Step 2: Convert to fraction form
    100,879,939.20/151,001,044.20 = 72,182,125.20/x
  3. Step 3: Cross multiply
    100,879,939.20x = 151,001,044.20 × 72,182,125.20
  4. Step 4: Simplify right side
    100,879,939.20x = 10,899,576,277,775,134
  5. Step 5: Solve for x
    x = 10,899,576,277,775,134/100,879,939.20
  6. Step 6: Final answer
    x = 108,045,032.19

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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.