Home / 158,588.40-218,841.12-86,953.56

Finding the Fourth Proportional to 158,588.40, 218,841.12 and 86,953.56

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Solution

The fourth proportional to 158,588.40, 218,841.12 and 86,953.56 is: 119,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,588.40 : 218,841.12 = 86,953.56 : x
  2. Step 2: Convert to fraction form
    158,588.40/218,841.12 = 86,953.56/x
  3. Step 3: Cross multiply
    158,588.40x = 218,841.12 × 86,953.56
  4. Step 4: Simplify right side
    158,588.40x = 19,029,014,458.39
  5. Step 5: Solve for x
    x = 19,029,014,458.39/158,588.40
  6. Step 6: Final answer
    x = 119,989.95

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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.