Home / 125,856.27-188,779.95-54,778.77

Finding the Fourth Proportional to 125,856.27, 188,779.95 and 54,778.77

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Solution

The fourth proportional to 125,856.27, 188,779.95 and 54,778.77 is: 82,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,856.27 : 188,779.95 = 54,778.77 : x
  2. Step 2: Convert to fraction form
    125,856.27/188,779.95 = 54,778.77/x
  3. Step 3: Cross multiply
    125,856.27x = 188,779.95 × 54,778.77
  4. Step 4: Simplify right side
    125,856.27x = 10,341,133,461.66
  5. Step 5: Solve for x
    x = 10,341,133,461.66/125,856.27
  6. Step 6: Final answer
    x = 82,166.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.