Home / 124,715.08-172,106.13-68,126.05

Finding the Fourth Proportional to 124,715.08, 172,106.13 and 68,126.05

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Solution

The fourth proportional to 124,715.08, 172,106.13 and 68,126.05 is: 94,013.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,715.08 : 172,106.13 = 68,126.05 : x
  2. Step 2: Convert to fraction form
    124,715.08/172,106.13 = 68,126.05/x
  3. Step 3: Cross multiply
    124,715.08x = 172,106.13 × 68,126.05
  4. Step 4: Simplify right side
    124,715.08x = 11,724,910,817.69
  5. Step 5: Solve for x
    x = 11,724,910,817.69/124,715.08
  6. Step 6: Final answer
    x = 94,013.58

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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.