Home / 161,838.96-242,438.04-76,332.72

Finding the Fourth Proportional to 161,838.96, 242,438.04 and 76,332.72

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Solution

The fourth proportional to 161,838.96, 242,438.04 and 76,332.72 is: 114,347.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,838.96 : 242,438.04 = 76,332.72 : x
  2. Step 2: Convert to fraction form
    161,838.96/242,438.04 = 76,332.72/x
  3. Step 3: Cross multiply
    161,838.96x = 242,438.04 × 76,332.72
  4. Step 4: Simplify right side
    161,838.96x = 18,505,955,024.67
  5. Step 5: Solve for x
    x = 18,505,955,024.67/161,838.96
  6. Step 6: Final answer
    x = 114,347.96

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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.