Home / 104,939.72-157,387.16-30,039.76

Finding the Fourth Proportional to 104,939.72, 157,387.16 and 30,039.76

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Solution

The fourth proportional to 104,939.72, 157,387.16 and 30,039.76 is: 45,053.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,939.72 : 157,387.16 = 30,039.76 : x
  2. Step 2: Convert to fraction form
    104,939.72/157,387.16 = 30,039.76/x
  3. Step 3: Cross multiply
    104,939.72x = 157,387.16 × 30,039.76
  4. Step 4: Simplify right side
    104,939.72x = 4,727,872,513.48
  5. Step 5: Solve for x
    x = 4,727,872,513.48/104,939.72
  6. Step 6: Final answer
    x = 45,053.22

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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.