Home / 143,682.02-198,281.12-83,287.67

Finding the Fourth Proportional to 143,682.02, 198,281.12 and 83,287.67

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Solution

The fourth proportional to 143,682.02, 198,281.12 and 83,287.67 is: 114,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,682.02 : 198,281.12 = 83,287.67 : x
  2. Step 2: Convert to fraction form
    143,682.02/198,281.12 = 83,287.67/x
  3. Step 3: Cross multiply
    143,682.02x = 198,281.12 × 83,287.67
  4. Step 4: Simplify right side
    143,682.02x = 16,514,371,081.95
  5. Step 5: Solve for x
    x = 16,514,371,081.95/143,682.02
  6. Step 6: Final answer
    x = 114,936.94

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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.