Home / 123,817.24-170,908.44-72,827.76

Finding the Fourth Proportional to 123,817.24, 170,908.44 and 72,827.76

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Solution

The fourth proportional to 123,817.24, 170,908.44 and 72,827.76 is: 100,526.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,817.24 : 170,908.44 = 72,827.76 : x
  2. Step 2: Convert to fraction form
    123,817.24/170,908.44 = 72,827.76/x
  3. Step 3: Cross multiply
    123,817.24x = 170,908.44 × 72,827.76
  4. Step 4: Simplify right side
    123,817.24x = 12,446,878,850.29
  5. Step 5: Solve for x
    x = 12,446,878,850.29/123,817.24
  6. Step 6: Final answer
    x = 100,526.22

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1.5x scale

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.