Home / 98,620.61-136,063.19-56,149.07

Finding the Fourth Proportional to 98,620.61, 136,063.19 and 56,149.07

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Solution

The fourth proportional to 98,620.61, 136,063.19 and 56,149.07 is: 77,466.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,620.61 : 136,063.19 = 56,149.07 : x
  2. Step 2: Convert to fraction form
    98,620.61/136,063.19 = 56,149.07/x
  3. Step 3: Cross multiply
    98,620.61x = 136,063.19 × 56,149.07
  4. Step 4: Simplify right side
    98,620.61x = 7,639,821,039.79
  5. Step 5: Solve for x
    x = 7,639,821,039.79/98,620.61
  6. Step 6: Final answer
    x = 77,466.78

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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.