Home / 107,849.40-161,946.90-72,943.80

Finding the Fourth Proportional to 107,849.40, 161,946.90 and 72,943.80

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Solution

The fourth proportional to 107,849.40, 161,946.90 and 72,943.80 is: 109,532.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,849.40 : 161,946.90 = 72,943.80 : x
  2. Step 2: Convert to fraction form
    107,849.40/161,946.90 = 72,943.80/x
  3. Step 3: Cross multiply
    107,849.40x = 161,946.90 × 72,943.80
  4. Step 4: Simplify right side
    107,849.40x = 11,813,022,284.22
  5. Step 5: Solve for x
    x = 11,813,022,284.22/107,849.40
  6. Step 6: Final answer
    x = 109,532.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.