Home / 158,222.21-218,345.84-85,625.04

Finding the Fourth Proportional to 158,222.21, 218,345.84 and 85,625.04

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Solution

The fourth proportional to 158,222.21, 218,345.84 and 85,625.04 is: 118,162.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,222.21 : 218,345.84 = 85,625.04 : x
  2. Step 2: Convert to fraction form
    158,222.21/218,345.84 = 85,625.04/x
  3. Step 3: Cross multiply
    158,222.21x = 218,345.84 × 85,625.04
  4. Step 4: Simplify right side
    158,222.21x = 18,695,870,855.71
  5. Step 5: Solve for x
    x = 18,695,870,855.71/158,222.21
  6. Step 6: Final answer
    x = 118,162.12

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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.