Home / 191,005.29-263,253.66-139,909.43

Finding the Fourth Proportional to 191,005.29, 263,253.66 and 139,909.43

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Solution

The fourth proportional to 191,005.29, 263,253.66 and 139,909.43 is: 192,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,005.29 : 263,253.66 = 139,909.43 : x
  2. Step 2: Convert to fraction form
    191,005.29/263,253.66 = 139,909.43/x
  3. Step 3: Cross multiply
    191,005.29x = 263,253.66 × 139,909.43
  4. Step 4: Simplify right side
    191,005.29x = 36,831,669,649.49
  5. Step 5: Solve for x
    x = 36,831,669,649.49/191,005.29
  6. Step 6: Final answer
    x = 192,830.62

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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.