Home / 158,700.23-218,992.37-90,703.70

Finding the Fourth Proportional to 158,700.23, 218,992.37 and 90,703.70

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Solution

The fourth proportional to 158,700.23, 218,992.37 and 90,703.70 is: 125,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,700.23 : 218,992.37 = 90,703.70 : x
  2. Step 2: Convert to fraction form
    158,700.23/218,992.37 = 90,703.70/x
  3. Step 3: Cross multiply
    158,700.23x = 218,992.37 × 90,703.70
  4. Step 4: Simplify right side
    158,700.23x = 19,863,416,682.29
  5. Step 5: Solve for x
    x = 19,863,416,682.29/158,700.23
  6. Step 6: Final answer
    x = 125,163.13

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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.