Home / 131,153.91-180,986.00-74,564.07

Finding the Fourth Proportional to 131,153.91, 180,986.00 and 74,564.07

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Solution

The fourth proportional to 131,153.91, 180,986.00 and 74,564.07 is: 102,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,153.91 : 180,986.00 = 74,564.07 : x
  2. Step 2: Convert to fraction form
    131,153.91/180,986.00 = 74,564.07/x
  3. Step 3: Cross multiply
    131,153.91x = 180,986.00 × 74,564.07
  4. Step 4: Simplify right side
    131,153.91x = 13,495,052,400.20
  5. Step 5: Solve for x
    x = 13,495,052,400.20/131,153.91
  6. Step 6: Final answer
    x = 102,894.78

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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.