Home / 161,908.93-242,933.18-86,941.40

Finding the Fourth Proportional to 161,908.93, 242,933.18 and 86,941.40

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Solution

The fourth proportional to 161,908.93, 242,933.18 and 86,941.40 is: 130,449.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,908.93 : 242,933.18 = 86,941.40 : x
  2. Step 2: Convert to fraction form
    161,908.93/242,933.18 = 86,941.40/x
  3. Step 3: Cross multiply
    161,908.93x = 242,933.18 × 86,941.40
  4. Step 4: Simplify right side
    161,908.93x = 21,120,950,775.65
  5. Step 5: Solve for x
    x = 21,120,950,775.65/161,908.93
  6. Step 6: Final answer
    x = 130,449.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.