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Finding the Fourth Proportional to 161,801.07, 242,510.99 and 72,950.55

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Solution

The fourth proportional to 161,801.07, 242,510.99 and 72,950.55 is: 109,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,801.07 : 242,510.99 = 72,950.55 : x
  2. Step 2: Convert to fraction form
    161,801.07/242,510.99 = 72,950.55/x
  3. Step 3: Cross multiply
    161,801.07x = 242,510.99 × 72,950.55
  4. Step 4: Simplify right side
    161,801.07x = 17,691,309,736.79
  5. Step 5: Solve for x
    x = 17,691,309,736.79/161,801.07
  6. Step 6: Final answer
    x = 109,339.88

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1.5x scale

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.