Home / 124,749,738.28-172,085,523.60-72,533,001.61

Finding the Fourth Proportional to 124,749,738.28, 172,085,523.60 and 72,533,001.61

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Solution

The fourth proportional to 124,749,738.28, 172,085,523.60 and 72,533,001.61 is: 100,055,356.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,749,738.28 : 172,085,523.60 = 72,533,001.61 : x
  2. Step 2: Convert to fraction form
    124,749,738.28/172,085,523.60 = 72,533,001.61/x
  3. Step 3: Cross multiply
    124,749,738.28x = 172,085,523.60 × 72,533,001.61
  4. Step 4: Simplify right side
    124,749,738.28x = 12,481,879,560,336,492
  5. Step 5: Solve for x
    x = 12,481,879,560,336,492/124,749,738.28
  6. Step 6: Final answer
    x = 100,055,356.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.