Home / 143,700.02-198,306.08-83,305.68

Finding the Fourth Proportional to 143,700.02, 198,306.08 and 83,305.68

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Solution

The fourth proportional to 143,700.02, 198,306.08 and 83,305.68 is: 114,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,700.02 : 198,306.08 = 83,305.68 : x
  2. Step 2: Convert to fraction form
    143,700.02/198,306.08 = 83,305.68/x
  3. Step 3: Cross multiply
    143,700.02x = 198,306.08 × 83,305.68
  4. Step 4: Simplify right side
    143,700.02x = 16,520,022,463.35
  5. Step 5: Solve for x
    x = 16,520,022,463.35/143,700.02
  6. Step 6: Final answer
    x = 114,961.86

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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.