Home / 163,936.80-245,905.20-53,128.80

Finding the Fourth Proportional to 163,936.80, 245,905.20 and 53,128.80

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Solution

The fourth proportional to 163,936.80, 245,905.20 and 53,128.80 is: 79,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,936.80 : 245,905.20 = 53,128.80 : x
  2. Step 2: Convert to fraction form
    163,936.80/245,905.20 = 53,128.80/x
  3. Step 3: Cross multiply
    163,936.80x = 245,905.20 × 53,128.80
  4. Step 4: Simplify right side
    163,936.80x = 13,064,648,189.76
  5. Step 5: Solve for x
    x = 13,064,648,189.76/163,936.80
  6. Step 6: Final answer
    x = 79,693.20

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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.