Home / 236,359.66-326,178.41-128,930.17

Finding the Fourth Proportional to 236,359.66, 326,178.41 and 128,930.17

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Solution

The fourth proportional to 236,359.66, 326,178.41 and 128,930.17 is: 177,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,359.66 : 326,178.41 = 128,930.17 : x
  2. Step 2: Convert to fraction form
    236,359.66/326,178.41 = 128,930.17/x
  3. Step 3: Cross multiply
    236,359.66x = 326,178.41 × 128,930.17
  4. Step 4: Simplify right side
    236,359.66x = 42,054,237,851.63
  5. Step 5: Solve for x
    x = 42,054,237,851.63/236,359.66
  6. Step 6: Final answer
    x = 177,924.77

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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.