Home / 125,645.21-173,430.78-80,444.93

Finding the Fourth Proportional to 125,645.21, 173,430.78 and 80,444.93

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Solution

The fourth proportional to 125,645.21, 173,430.78 and 80,444.93 is: 111,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,645.21 : 173,430.78 = 80,444.93 : x
  2. Step 2: Convert to fraction form
    125,645.21/173,430.78 = 80,444.93/x
  3. Step 3: Cross multiply
    125,645.21x = 173,430.78 × 80,444.93
  4. Step 4: Simplify right side
    125,645.21x = 13,951,626,956.95
  5. Step 5: Solve for x
    x = 13,951,626,956.95/125,645.21
  6. Step 6: Final answer
    x = 111,039.86

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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.