Home / 154,021.64-230,506.76-129,089.84

Finding the Fourth Proportional to 154,021.64, 230,506.76 and 129,089.84

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Solution

The fourth proportional to 154,021.64, 230,506.76 and 129,089.84 is: 193,194.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,021.64 : 230,506.76 = 129,089.84 : x
  2. Step 2: Convert to fraction form
    154,021.64/230,506.76 = 129,089.84/x
  3. Step 3: Cross multiply
    154,021.64x = 230,506.76 × 129,089.84
  4. Step 4: Simplify right side
    154,021.64x = 29,756,079,937.51
  5. Step 5: Solve for x
    x = 29,756,079,937.51/154,021.64
  6. Step 6: Final answer
    x = 193,194.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.