Home / 163,942.62-245,865.33-70,426.50

Finding the Fourth Proportional to 163,942.62, 245,865.33 and 70,426.50

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Solution

The fourth proportional to 163,942.62, 245,865.33 and 70,426.50 is: 105,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,942.62 : 245,865.33 = 70,426.50 : x
  2. Step 2: Convert to fraction form
    163,942.62/245,865.33 = 70,426.50/x
  3. Step 3: Cross multiply
    163,942.62x = 245,865.33 × 70,426.50
  4. Step 4: Simplify right side
    163,942.62x = 17,315,434,663.25
  5. Step 5: Solve for x
    x = 17,315,434,663.25/163,942.62
  6. Step 6: Final answer
    x = 105,618.87

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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.