Home / 101,011.31-151,515.96-38,681.81

Finding the Fourth Proportional to 101,011.31, 151,515.96 and 38,681.81

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Solution

The fourth proportional to 101,011.31, 151,515.96 and 38,681.81 is: 58,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,011.31 : 151,515.96 = 38,681.81 : x
  2. Step 2: Convert to fraction form
    101,011.31/151,515.96 = 38,681.81/x
  3. Step 3: Cross multiply
    101,011.31x = 151,515.96 × 38,681.81
  4. Step 4: Simplify right side
    101,011.31x = 5,860,911,576.69
  5. Step 5: Solve for x
    x = 5,860,911,576.69/101,011.31
  6. Step 6: Final answer
    x = 58,022.33

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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.