Home / 145,539.02-200,847.75-80,129.84

Finding the Fourth Proportional to 145,539.02, 200,847.75 and 80,129.84

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Solution

The fourth proportional to 145,539.02, 200,847.75 and 80,129.84 is: 110,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539.02 : 200,847.75 = 80,129.84 : x
  2. Step 2: Convert to fraction form
    145,539.02/200,847.75 = 80,129.84/x
  3. Step 3: Cross multiply
    145,539.02x = 200,847.75 × 80,129.84
  4. Step 4: Simplify right side
    145,539.02x = 16,093,896,767.13
  5. Step 5: Solve for x
    x = 16,093,896,767.13/145,539.02
  6. Step 6: Final answer
    x = 110,581.32

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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.