Home / 104,000.02-143,520.05-58,687.61

Finding the Fourth Proportional to 104,000.02, 143,520.05 and 58,687.61

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Solution

The fourth proportional to 104,000.02, 143,520.05 and 58,687.61 is: 80,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,000.02 : 143,520.05 = 58,687.61 : x
  2. Step 2: Convert to fraction form
    104,000.02/143,520.05 = 58,687.61/x
  3. Step 3: Cross multiply
    104,000.02x = 143,520.05 × 58,687.61
  4. Step 4: Simplify right side
    104,000.02x = 8,422,848,150.70
  5. Step 5: Solve for x
    x = 8,422,848,150.70/104,000.02
  6. Step 6: Final answer
    x = 80,988.91

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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.