Home / 149,206.02-205,903.72-81,226.77

Finding the Fourth Proportional to 149,206.02, 205,903.72 and 81,226.77

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Solution

The fourth proportional to 149,206.02, 205,903.72 and 81,226.77 is: 112,092.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,206.02 : 205,903.72 = 81,226.77 : x
  2. Step 2: Convert to fraction form
    149,206.02/205,903.72 = 81,226.77/x
  3. Step 3: Cross multiply
    149,206.02x = 205,903.72 × 81,226.77
  4. Step 4: Simplify right side
    149,206.02x = 16,724,892,670.93
  5. Step 5: Solve for x
    x = 16,724,892,670.93/149,206.02
  6. Step 6: Final answer
    x = 112,092.62

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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.