Home / 125,039.89-172,551.66-71,323.77

Finding the Fourth Proportional to 125,039.89, 172,551.66 and 71,323.77

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Solution

The fourth proportional to 125,039.89, 172,551.66 and 71,323.77 is: 98,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,039.89 : 172,551.66 = 71,323.77 : x
  2. Step 2: Convert to fraction form
    125,039.89/172,551.66 = 71,323.77/x
  3. Step 3: Cross multiply
    125,039.89x = 172,551.66 × 71,323.77
  4. Step 4: Simplify right side
    125,039.89x = 12,307,034,910.96
  5. Step 5: Solve for x
    x = 12,307,034,910.96/125,039.89
  6. Step 6: Final answer
    x = 98,424.87

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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.