Home / 131,100.48-180,934.20-74,520.36

Finding the Fourth Proportional to 131,100.48, 180,934.20 and 74,520.36

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Solution

The fourth proportional to 131,100.48, 180,934.20 and 74,520.36 is: 102,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,100.48 : 180,934.20 = 74,520.36 : x
  2. Step 2: Convert to fraction form
    131,100.48/180,934.20 = 74,520.36/x
  3. Step 3: Cross multiply
    131,100.48x = 180,934.20 × 74,520.36
  4. Step 4: Simplify right side
    131,100.48x = 13,483,281,720.31
  5. Step 5: Solve for x
    x = 13,483,281,720.31/131,100.48
  6. Step 6: Final answer
    x = 102,846.93

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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.