Home / 109,035.72-163,210.86-75,102.54

Finding the Fourth Proportional to 109,035.72, 163,210.86 and 75,102.54

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Solution

The fourth proportional to 109,035.72, 163,210.86 and 75,102.54 is: 112,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,035.72 : 163,210.86 = 75,102.54 : x
  2. Step 2: Convert to fraction form
    109,035.72/163,210.86 = 75,102.54/x
  3. Step 3: Cross multiply
    109,035.72x = 163,210.86 × 75,102.54
  4. Step 4: Simplify right side
    109,035.72x = 12,257,550,141.58
  5. Step 5: Solve for x
    x = 12,257,550,141.58/109,035.72
  6. Step 6: Final answer
    x = 112,417.75

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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.