Home / 112,628.70-168,651.45-89,106.30

Finding the Fourth Proportional to 112,628.70, 168,651.45 and 89,106.30

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Solution

The fourth proportional to 112,628.70, 168,651.45 and 89,106.30 is: 133,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,628.70 : 168,651.45 = 89,106.30 : x
  2. Step 2: Convert to fraction form
    112,628.70/168,651.45 = 89,106.30/x
  3. Step 3: Cross multiply
    112,628.70x = 168,651.45 × 89,106.30
  4. Step 4: Simplify right side
    112,628.70x = 15,027,906,699.14
  5. Step 5: Solve for x
    x = 15,027,906,699.14/112,628.70
  6. Step 6: Final answer
    x = 133,428.75

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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.