Home / 145,274.81-200,477.83-80,744.20

Finding the Fourth Proportional to 145,274.81, 200,477.83 and 80,744.20

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Solution

The fourth proportional to 145,274.81, 200,477.83 and 80,744.20 is: 111,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,274.81 : 200,477.83 = 80,744.20 : x
  2. Step 2: Convert to fraction form
    145,274.81/200,477.83 = 80,744.20/x
  3. Step 3: Cross multiply
    145,274.81x = 200,477.83 × 80,744.20
  4. Step 4: Simplify right side
    145,274.81x = 16,187,422,001.09
  5. Step 5: Solve for x
    x = 16,187,422,001.09/145,274.81
  6. Step 6: Final answer
    x = 111,426.21

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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.