Home / 127,701.09-191,720.93-109,100.66

Finding the Fourth Proportional to 127,701.09, 191,720.93 and 109,100.66

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Solution

The fourth proportional to 127,701.09, 191,720.93 and 109,100.66 is: 163,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,701.09 : 191,720.93 = 109,100.66 : x
  2. Step 2: Convert to fraction form
    127,701.09/191,720.93 = 109,100.66/x
  3. Step 3: Cross multiply
    127,701.09x = 191,720.93 × 109,100.66
  4. Step 4: Simplify right side
    127,701.09x = 20,916,878,494.71
  5. Step 5: Solve for x
    x = 20,916,878,494.71/127,701.09
  6. Step 6: Final answer
    x = 163,795.61

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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.