Home / 127,429.68-191,070.72-43,161.60

Finding the Fourth Proportional to 127,429.68, 191,070.72 and 43,161.60

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Solution

The fourth proportional to 127,429.68, 191,070.72 and 43,161.60 is: 64,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,429.68 : 191,070.72 = 43,161.60 : x
  2. Step 2: Convert to fraction form
    127,429.68/191,070.72 = 43,161.60/x
  3. Step 3: Cross multiply
    127,429.68x = 191,070.72 × 43,161.60
  4. Step 4: Simplify right side
    127,429.68x = 8,246,917,988.35
  5. Step 5: Solve for x
    x = 8,246,917,988.35/127,429.68
  6. Step 6: Final answer
    x = 64,717.40

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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.