Home / 79,225.23-109,100.39-74,159.94

Finding the Fourth Proportional to 79,225.23, 109,100.39 and 74,159.94

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Solution

The fourth proportional to 79,225.23, 109,100.39 and 74,159.94 is: 102,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,225.23 : 109,100.39 = 74,159.94 : x
  2. Step 2: Convert to fraction form
    79,225.23/109,100.39 = 74,159.94/x
  3. Step 3: Cross multiply
    79,225.23x = 109,100.39 × 74,159.94
  4. Step 4: Simplify right side
    79,225.23x = 8,090,878,005.58
  5. Step 5: Solve for x
    x = 8,090,878,005.58/79,225.23
  6. Step 6: Final answer
    x = 102,125.02

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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.