Home / 157,620.20-236,428-73,333.22

Finding the Fourth Proportional to 157,620.20, 236,428 and 73,333.22

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Solution

The fourth proportional to 157,620.20, 236,428 and 73,333.22 is: 109,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,620.20 : 236,428 = 73,333.22 : x
  2. Step 2: Convert to fraction form
    157,620.20/236,428 = 73,333.22/x
  3. Step 3: Cross multiply
    157,620.20x = 236,428 × 73,333.22
  4. Step 4: Simplify right side
    157,620.20x = 17,338,026,538.16
  5. Step 5: Solve for x
    x = 17,338,026,538.16/157,620.20
  6. Step 6: Final answer
    x = 109,998.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.