Home / 125,979.79-173,845.55-78,232.12

Finding the Fourth Proportional to 125,979.79, 173,845.55 and 78,232.12

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Solution

The fourth proportional to 125,979.79, 173,845.55 and 78,232.12 is: 107,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,979.79 : 173,845.55 = 78,232.12 : x
  2. Step 2: Convert to fraction form
    125,979.79/173,845.55 = 78,232.12/x
  3. Step 3: Cross multiply
    125,979.79x = 173,845.55 × 78,232.12
  4. Step 4: Simplify right side
    125,979.79x = 13,600,305,929.07
  5. Step 5: Solve for x
    x = 13,600,305,929.07/125,979.79
  6. Step 6: Final answer
    x = 107,956.25

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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.