Home / 112,756.89-155,497.14-67,427.54

Finding the Fourth Proportional to 112,756.89, 155,497.14 and 67,427.54

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Solution

The fourth proportional to 112,756.89, 155,497.14 and 67,427.54 is: 92,985.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,756.89 : 155,497.14 = 67,427.54 : x
  2. Step 2: Convert to fraction form
    112,756.89/155,497.14 = 67,427.54/x
  3. Step 3: Cross multiply
    112,756.89x = 155,497.14 × 67,427.54
  4. Step 4: Simplify right side
    112,756.89x = 10,484,788,849.75
  5. Step 5: Solve for x
    x = 10,484,788,849.75/112,756.89
  6. Step 6: Final answer
    x = 92,985.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.