Home / 158,256.09-218,397.24-86,635.89

Finding the Fourth Proportional to 158,256.09, 218,397.24 and 86,635.89

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Solution

The fourth proportional to 158,256.09, 218,397.24 and 86,635.89 is: 119,559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,256.09 : 218,397.24 = 86,635.89 : x
  2. Step 2: Convert to fraction form
    158,256.09/218,397.24 = 86,635.89/x
  3. Step 3: Cross multiply
    158,256.09x = 218,397.24 × 86,635.89
  4. Step 4: Simplify right side
    158,256.09x = 18,921,039,260.94
  5. Step 5: Solve for x
    x = 18,921,039,260.94/158,256.09
  6. Step 6: Final answer
    x = 119,559.63

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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.