Home / 125,814.06-173,628.18-72,109.44

Finding the Fourth Proportional to 125,814.06, 173,628.18 and 72,109.44

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Solution

The fourth proportional to 125,814.06, 173,628.18 and 72,109.44 is: 99,513.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,814.06 : 173,628.18 = 72,109.44 : x
  2. Step 2: Convert to fraction form
    125,814.06/173,628.18 = 72,109.44/x
  3. Step 3: Cross multiply
    125,814.06x = 173,628.18 × 72,109.44
  4. Step 4: Simplify right side
    125,814.06x = 12,520,230,828.02
  5. Step 5: Solve for x
    x = 12,520,230,828.02/125,814.06
  6. Step 6: Final answer
    x = 99,513.77

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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.