Home / 103,520.02-142,856.77-58,198.21

Finding the Fourth Proportional to 103,520.02, 142,856.77 and 58,198.21

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Solution

The fourth proportional to 103,520.02, 142,856.77 and 58,198.21 is: 80,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,520.02 : 142,856.77 = 58,198.21 : x
  2. Step 2: Convert to fraction form
    103,520.02/142,856.77 = 58,198.21/x
  3. Step 3: Cross multiply
    103,520.02x = 142,856.77 × 58,198.21
  4. Step 4: Simplify right side
    103,520.02x = 8,314,008,250.77
  5. Step 5: Solve for x
    x = 8,314,008,250.77/103,520.02
  6. Step 6: Final answer
    x = 80,313.04

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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.