Home / 101,405.36-152,128-34,829.28

Finding the Fourth Proportional to 101,405.36, 152,128 and 34,829.28

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Solution

The fourth proportional to 101,405.36, 152,128 and 34,829.28 is: 52,250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,405.36 : 152,128 = 34,829.28 : x
  2. Step 2: Convert to fraction form
    101,405.36/152,128 = 34,829.28/x
  3. Step 3: Cross multiply
    101,405.36x = 152,128 × 34,829.28
  4. Step 4: Simplify right side
    101,405.36x = 5,298,508,707.84
  5. Step 5: Solve for x
    x = 5,298,508,707.84/101,405.36
  6. Step 6: Final answer
    x = 52,250.78

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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.