Home / 125,269.83-172,879.44-74,312.73

Finding the Fourth Proportional to 125,269.83, 172,879.44 and 74,312.73

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Solution

The fourth proportional to 125,269.83, 172,879.44 and 74,312.73 is: 102,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,269.83 : 172,879.44 = 74,312.73 : x
  2. Step 2: Convert to fraction form
    125,269.83/172,879.44 = 74,312.73/x
  3. Step 3: Cross multiply
    125,269.83x = 172,879.44 × 74,312.73
  4. Step 4: Simplify right side
    125,269.83x = 12,847,143,934.91
  5. Step 5: Solve for x
    x = 12,847,143,934.91/125,269.83
  6. Step 6: Final answer
    x = 102,555.77

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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.