Home / 100,841.31-151,242.53-30,711.51

Finding the Fourth Proportional to 100,841.31, 151,242.53 and 30,711.51

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Solution

The fourth proportional to 100,841.31, 151,242.53 and 30,711.51 is: 46,061.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,841.31 : 151,242.53 = 30,711.51 : x
  2. Step 2: Convert to fraction form
    100,841.31/151,242.53 = 30,711.51/x
  3. Step 3: Cross multiply
    100,841.31x = 151,242.53 × 30,711.51
  4. Step 4: Simplify right side
    100,841.31x = 4,644,886,318.96
  5. Step 5: Solve for x
    x = 4,644,886,318.96/100,841.31
  6. Step 6: Final answer
    x = 46,061.34

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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.