Home / 128,865.96-193,303.80-40,127.22

Finding the Fourth Proportional to 128,865.96, 193,303.80 and 40,127.22

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Solution

The fourth proportional to 128,865.96, 193,303.80 and 40,127.22 is: 60,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,865.96 : 193,303.80 = 40,127.22 : x
  2. Step 2: Convert to fraction form
    128,865.96/193,303.80 = 40,127.22/x
  3. Step 3: Cross multiply
    128,865.96x = 193,303.80 × 40,127.22
  4. Step 4: Simplify right side
    128,865.96x = 7,756,744,109.44
  5. Step 5: Solve for x
    x = 7,756,744,109.44/128,865.96
  6. Step 6: Final answer
    x = 60,192.34

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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.