Home / 163,931.69-245,725.23-75,112.15

Finding the Fourth Proportional to 163,931.69, 245,725.23 and 75,112.15

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Solution

The fourth proportional to 163,931.69, 245,725.23 and 75,112.15 is: 112,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,931.69 : 245,725.23 = 75,112.15 : x
  2. Step 2: Convert to fraction form
    163,931.69/245,725.23 = 75,112.15/x
  3. Step 3: Cross multiply
    163,931.69x = 245,725.23 × 75,112.15
  4. Step 4: Simplify right side
    163,931.69x = 18,456,950,001.90
  5. Step 5: Solve for x
    x = 18,456,950,001.90/163,931.69
  6. Step 6: Final answer
    x = 112,589.28

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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.