Home / 105,600.19-145,728.26-63,168.75

Finding the Fourth Proportional to 105,600.19, 145,728.26 and 63,168.75

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Solution

The fourth proportional to 105,600.19, 145,728.26 and 63,168.75 is: 87,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,600.19 : 145,728.26 = 63,168.75 : x
  2. Step 2: Convert to fraction form
    105,600.19/145,728.26 = 63,168.75/x
  3. Step 3: Cross multiply
    105,600.19x = 145,728.26 × 63,168.75
  4. Step 4: Simplify right side
    105,600.19x = 9,205,472,023.88
  5. Step 5: Solve for x
    x = 9,205,472,023.88/105,600.19
  6. Step 6: Final answer
    x = 87,172.87

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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.