Home / 125,077.07-172,606.47-67,716.43

Finding the Fourth Proportional to 125,077.07, 172,606.47 and 67,716.43

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Solution

The fourth proportional to 125,077.07, 172,606.47 and 67,716.43 is: 93,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,077.07 : 172,606.47 = 67,716.43 : x
  2. Step 2: Convert to fraction form
    125,077.07/172,606.47 = 67,716.43/x
  3. Step 3: Cross multiply
    125,077.07x = 172,606.47 × 67,716.43
  4. Step 4: Simplify right side
    125,077.07x = 11,688,293,774.01
  5. Step 5: Solve for x
    x = 11,688,293,774.01/125,077.07
  6. Step 6: Final answer
    x = 93,448.73

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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.