Home / 132,971.60-183,500.52-72,542.28

Finding the Fourth Proportional to 132,971.60, 183,500.52 and 72,542.28

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Solution

The fourth proportional to 132,971.60, 183,500.52 and 72,542.28 is: 100,108.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,971.60 : 183,500.52 = 72,542.28 : x
  2. Step 2: Convert to fraction form
    132,971.60/183,500.52 = 72,542.28/x
  3. Step 3: Cross multiply
    132,971.60x = 183,500.52 × 72,542.28
  4. Step 4: Simplify right side
    132,971.60x = 13,311,546,101.99
  5. Step 5: Solve for x
    x = 13,311,546,101.99/132,971.60
  6. Step 6: Final answer
    x = 100,108.19

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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.