Home / 158,548.34-218,785.92-86,913.56

Finding the Fourth Proportional to 158,548.34, 218,785.92 and 86,913.56

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Solution

The fourth proportional to 158,548.34, 218,785.92 and 86,913.56 is: 119,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,548.34 : 218,785.92 = 86,913.56 : x
  2. Step 2: Convert to fraction form
    158,548.34/218,785.92 = 86,913.56/x
  3. Step 3: Cross multiply
    158,548.34x = 218,785.92 × 86,913.56
  4. Step 4: Simplify right side
    158,548.34x = 19,015,463,185.08
  5. Step 5: Solve for x
    x = 19,015,463,185.08/158,548.34
  6. Step 6: Final answer
    x = 119,934.80

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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.