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Finding the Fourth Proportional to 161,685, 223,125.30 and 94,617

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Solution

The fourth proportional to 161,685, 223,125.30 and 94,617 is: 130,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,685 : 223,125.30 = 94,617 : x
  2. Step 2: Convert to fraction form
    161,685/223,125.30 = 94,617/x
  3. Step 3: Cross multiply
    161,685x = 223,125.30 × 94,617
  4. Step 4: Simplify right side
    161,685x = 21,111,446,510.10
  5. Step 5: Solve for x
    x = 21,111,446,510.10/161,685
  6. Step 6: Final answer
    x = 130,571.46

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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.