Home / 236,590.80-326,500.25-129,165.36

Finding the Fourth Proportional to 236,590.80, 326,500.25 and 129,165.36

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Solution

The fourth proportional to 236,590.80, 326,500.25 and 129,165.36 is: 178,250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,590.80 : 326,500.25 = 129,165.36 : x
  2. Step 2: Convert to fraction form
    236,590.80/326,500.25 = 129,165.36/x
  3. Step 3: Cross multiply
    236,590.80x = 326,500.25 × 129,165.36
  4. Step 4: Simplify right side
    236,590.80x = 42,172,521,685.51
  5. Step 5: Solve for x
    x = 42,172,521,685.51/236,590.80
  6. Step 6: Final answer
    x = 178,250.89

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1.5x scale

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.