Home / 112,841.64-168,930.18-83,390.76

Finding the Fourth Proportional to 112,841.64, 168,930.18 and 83,390.76

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Solution

The fourth proportional to 112,841.64, 168,930.18 and 83,390.76 is: 124,840.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,841.64 : 168,930.18 = 83,390.76 : x
  2. Step 2: Convert to fraction form
    112,841.64/168,930.18 = 83,390.76/x
  3. Step 3: Cross multiply
    112,841.64x = 168,930.18 × 83,390.76
  4. Step 4: Simplify right side
    112,841.64x = 14,087,216,097.14
  5. Step 5: Solve for x
    x = 14,087,216,097.14/112,841.64
  6. Step 6: Final answer
    x = 124,840.58

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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.