Home / 131,102.82-180,921.93-74,512.74

Finding the Fourth Proportional to 131,102.82, 180,921.93 and 74,512.74

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Solution

The fourth proportional to 131,102.82, 180,921.93 and 74,512.74 is: 102,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,102.82 : 180,921.93 = 74,512.74 : x
  2. Step 2: Convert to fraction form
    131,102.82/180,921.93 = 74,512.74/x
  3. Step 3: Cross multiply
    131,102.82x = 180,921.93 × 74,512.74
  4. Step 4: Simplify right side
    131,102.82x = 13,480,988,730.39
  5. Step 5: Solve for x
    x = 13,480,988,730.39/131,102.82
  6. Step 6: Final answer
    x = 102,827.60

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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.