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Finding the Fourth Proportional to 151,453.39, 209,041.30 and 94,136

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Solution

The fourth proportional to 151,453.39, 209,041.30 and 94,136 is: 129,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,453.39 : 209,041.30 = 94,136 : x
  2. Step 2: Convert to fraction form
    151,453.39/209,041.30 = 94,136/x
  3. Step 3: Cross multiply
    151,453.39x = 209,041.30 × 94,136
  4. Step 4: Simplify right side
    151,453.39x = 19,678,311,816.80
  5. Step 5: Solve for x
    x = 19,678,311,816.80/151,453.39
  6. Step 6: Final answer
    x = 129,929.82

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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.