Home / 158,256.36-218,393.46-86,635.80

Finding the Fourth Proportional to 158,256.36, 218,393.46 and 86,635.80

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Solution

The fourth proportional to 158,256.36, 218,393.46 and 86,635.80 is: 119,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,256.36 : 218,393.46 = 86,635.80 : x
  2. Step 2: Convert to fraction form
    158,256.36/218,393.46 = 86,635.80/x
  3. Step 3: Cross multiply
    158,256.36x = 218,393.46 × 86,635.80
  4. Step 4: Simplify right side
    158,256.36x = 18,920,692,121.87
  5. Step 5: Solve for x
    x = 18,920,692,121.87/158,256.36
  6. Step 6: Final answer
    x = 119,557.23

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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.