Home / 236,808.65-326,800.64-129,385.35

Finding the Fourth Proportional to 236,808.65, 326,800.64 and 129,385.35

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Solution

The fourth proportional to 236,808.65, 326,800.64 and 129,385.35 is: 178,554.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,808.65 : 326,800.64 = 129,385.35 : x
  2. Step 2: Convert to fraction form
    236,808.65/326,800.64 = 129,385.35/x
  3. Step 3: Cross multiply
    236,808.65x = 326,800.64 × 129,385.35
  4. Step 4: Simplify right side
    236,808.65x = 42,283,215,510.09
  5. Step 5: Solve for x
    x = 42,283,215,510.09/236,808.65
  6. Step 6: Final answer
    x = 178,554.35

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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.