Home / 236,870.65-326,880.83-129,441.36

Finding the Fourth Proportional to 236,870.65, 326,880.83 and 129,441.36

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Solution

The fourth proportional to 236,870.65, 326,880.83 and 129,441.36 is: 178,628.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,870.65 : 326,880.83 = 129,441.36 : x
  2. Step 2: Convert to fraction form
    236,870.65/326,880.83 = 129,441.36/x
  3. Step 3: Cross multiply
    236,870.65x = 326,880.83 × 129,441.36
  4. Step 4: Simplify right side
    236,870.65x = 42,311,899,193.13
  5. Step 5: Solve for x
    x = 42,311,899,193.13/236,870.65
  6. Step 6: Final answer
    x = 178,628.71

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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.