Home / 149,366.85-206,123.66-81,384.39

Finding the Fourth Proportional to 149,366.85, 206,123.66 and 81,384.39

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Solution

The fourth proportional to 149,366.85, 206,123.66 and 81,384.39 is: 112,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,366.85 : 206,123.66 = 81,384.39 : x
  2. Step 2: Convert to fraction form
    149,366.85/206,123.66 = 81,384.39/x
  3. Step 3: Cross multiply
    149,366.85x = 206,123.66 × 81,384.39
  4. Step 4: Simplify right side
    149,366.85x = 16,775,248,333.67
  5. Step 5: Solve for x
    x = 16,775,248,333.67/149,366.85
  6. Step 6: Final answer
    x = 112,309.05

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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.