Home / 236,938.04-326,973.64-129,508

Finding the Fourth Proportional to 236,938.04, 326,973.64 and 129,508

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Solution

The fourth proportional to 236,938.04, 326,973.64 and 129,508 is: 178,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,938.04 : 326,973.64 = 129,508 : x
  2. Step 2: Convert to fraction form
    236,938.04/326,973.64 = 129,508/x
  3. Step 3: Cross multiply
    236,938.04x = 326,973.64 × 129,508
  4. Step 4: Simplify right side
    236,938.04x = 42,345,702,169.12
  5. Step 5: Solve for x
    x = 42,345,702,169.12/236,938.04
  6. Step 6: Final answer
    x = 178,720.57

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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.