Home / 100,879,934.20-151,001,036.70-72,182,120.20

Finding the Fourth Proportional to 100,879,934.20, 151,001,036.70 and 72,182,120.20

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Solution

The fourth proportional to 100,879,934.20, 151,001,036.70 and 72,182,120.20 is: 108,045,024.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,879,934.20 : 151,001,036.70 = 72,182,120.20 : x
  2. Step 2: Convert to fraction form
    100,879,934.20/151,001,036.70 = 72,182,120.20/x
  3. Step 3: Cross multiply
    100,879,934.20x = 151,001,036.70 × 72,182,120.20
  4. Step 4: Simplify right side
    100,879,934.20x = 10,899,574,981,404,010
  5. Step 5: Solve for x
    x = 10,899,574,981,404,010/100,879,934.20
  6. Step 6: Final answer
    x = 108,045,024.69

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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.