Home / 125,637.32-173,321.70-77,195.28

Finding the Fourth Proportional to 125,637.32, 173,321.70 and 77,195.28

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Solution

The fourth proportional to 125,637.32, 173,321.70 and 77,195.28 is: 106,493.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,637.32 : 173,321.70 = 77,195.28 : x
  2. Step 2: Convert to fraction form
    125,637.32/173,321.70 = 77,195.28/x
  3. Step 3: Cross multiply
    125,637.32x = 173,321.70 × 77,195.28
  4. Step 4: Simplify right side
    125,637.32x = 13,379,617,161.58
  5. Step 5: Solve for x
    x = 13,379,617,161.58/125,637.32
  6. Step 6: Final answer
    x = 106,493.97

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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.