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Finding the Fourth Proportional to 175,607.81, 242,136.75 and 129,733.82

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Solution

The fourth proportional to 175,607.81, 242,136.75 and 129,733.82 is: 178,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,607.81 : 242,136.75 = 129,733.82 : x
  2. Step 2: Convert to fraction form
    175,607.81/242,136.75 = 129,733.82/x
  3. Step 3: Cross multiply
    175,607.81x = 242,136.75 × 129,733.82
  4. Step 4: Simplify right side
    175,607.81x = 31,413,324,329.20
  5. Step 5: Solve for x
    x = 31,413,324,329.20/175,607.81
  6. Step 6: Final answer
    x = 178,883.42

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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.