Home / 105,728.28-159,225.96-96,280.44

Finding the Fourth Proportional to 105,728.28, 159,225.96 and 96,280.44

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Solution

The fourth proportional to 105,728.28, 159,225.96 and 96,280.44 is: 144,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,728.28 : 159,225.96 = 96,280.44 : x
  2. Step 2: Convert to fraction form
    105,728.28/159,225.96 = 96,280.44/x
  3. Step 3: Cross multiply
    105,728.28x = 159,225.96 × 96,280.44
  4. Step 4: Simplify right side
    105,728.28x = 15,330,345,488.22
  5. Step 5: Solve for x
    x = 15,330,345,488.22/105,728.28
  6. Step 6: Final answer
    x = 144,997.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.