Home / 158,014.22-218,062.77-86,398.70

Finding the Fourth Proportional to 158,014.22, 218,062.77 and 86,398.70

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Solution

The fourth proportional to 158,014.22, 218,062.77 and 86,398.70 is: 119,231.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,014.22 : 218,062.77 = 86,398.70 : x
  2. Step 2: Convert to fraction form
    158,014.22/218,062.77 = 86,398.70/x
  3. Step 3: Cross multiply
    158,014.22x = 218,062.77 × 86,398.70
  4. Step 4: Simplify right side
    158,014.22x = 18,840,339,846.40
  5. Step 5: Solve for x
    x = 18,840,339,846.40/158,014.22
  6. Step 6: Final answer
    x = 119,231.93

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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.