Home / 123,741.81-170,763.84-67,153.20

Finding the Fourth Proportional to 123,741.81, 170,763.84 and 67,153.20

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Solution

The fourth proportional to 123,741.81, 170,763.84 and 67,153.20 is: 92,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,741.81 : 170,763.84 = 67,153.20 : x
  2. Step 2: Convert to fraction form
    123,741.81/170,763.84 = 67,153.20/x
  3. Step 3: Cross multiply
    123,741.81x = 170,763.84 × 67,153.20
  4. Step 4: Simplify right side
    123,741.81x = 11,467,338,300.29
  5. Step 5: Solve for x
    x = 11,467,338,300.29/123,741.81
  6. Step 6: Final answer
    x = 92,671.49

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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.