Home / 112,010.20-168,161.10-89,848.60

Finding the Fourth Proportional to 112,010.20, 168,161.10 and 89,848.60

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Solution

The fourth proportional to 112,010.20, 168,161.10 and 89,848.60 is: 134,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,010.20 : 168,161.10 = 89,848.60 : x
  2. Step 2: Convert to fraction form
    112,010.20/168,161.10 = 89,848.60/x
  3. Step 3: Cross multiply
    112,010.20x = 168,161.10 × 89,848.60
  4. Step 4: Simplify right side
    112,010.20x = 15,109,039,409.46
  5. Step 5: Solve for x
    x = 15,109,039,409.46/112,010.20
  6. Step 6: Final answer
    x = 134,889.85

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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.