Home / 125,979.33-173,838.86-77,573.50

Finding the Fourth Proportional to 125,979.33, 173,838.86 and 77,573.50

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Solution

The fourth proportional to 125,979.33, 173,838.86 and 77,573.50 is: 107,043.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,979.33 : 173,838.86 = 77,573.50 : x
  2. Step 2: Convert to fraction form
    125,979.33/173,838.86 = 77,573.50/x
  3. Step 3: Cross multiply
    125,979.33x = 173,838.86 × 77,573.50
  4. Step 4: Simplify right side
    125,979.33x = 13,485,288,806.21
  5. Step 5: Solve for x
    x = 13,485,288,806.21/125,979.33
  6. Step 6: Final answer
    x = 107,043.66

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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.