Home / 180,965.96-249,733.32-100,393.49

Finding the Fourth Proportional to 180,965.96, 249,733.32 and 100,393.49

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Solution

The fourth proportional to 180,965.96, 249,733.32 and 100,393.49 is: 138,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,965.96 : 249,733.32 = 100,393.49 : x
  2. Step 2: Convert to fraction form
    180,965.96/249,733.32 = 100,393.49/x
  3. Step 3: Cross multiply
    180,965.96x = 249,733.32 × 100,393.49
  4. Step 4: Simplify right side
    180,965.96x = 25,071,599,564.09
  5. Step 5: Solve for x
    x = 25,071,599,564.09/180,965.96
  6. Step 6: Final answer
    x = 138,543.18

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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.