Home / 105,512.24-145,616.78-63,069.86

Finding the Fourth Proportional to 105,512.24, 145,616.78 and 63,069.86

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Solution

The fourth proportional to 105,512.24, 145,616.78 and 63,069.86 is: 87,042.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,512.24 : 145,616.78 = 63,069.86 : x
  2. Step 2: Convert to fraction form
    105,512.24/145,616.78 = 63,069.86/x
  3. Step 3: Cross multiply
    105,512.24x = 145,616.78 × 63,069.86
  4. Step 4: Simplify right side
    105,512.24x = 9,184,029,357.84
  5. Step 5: Solve for x
    x = 9,184,029,357.84/105,512.24
  6. Step 6: Final answer
    x = 87,042.32

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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.