Home / 121,942.08-182,882.88-82,742.40

Finding the Fourth Proportional to 121,942.08, 182,882.88 and 82,742.40

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Solution

The fourth proportional to 121,942.08, 182,882.88 and 82,742.40 is: 124,093.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,942.08 : 182,882.88 = 82,742.40 : x
  2. Step 2: Convert to fraction form
    121,942.08/182,882.88 = 82,742.40/x
  3. Step 3: Cross multiply
    121,942.08x = 182,882.88 × 82,742.40
  4. Step 4: Simplify right side
    121,942.08x = 15,132,168,410.11
  5. Step 5: Solve for x
    x = 15,132,168,410.11/121,942.08
  6. Step 6: Final answer
    x = 124,093.08

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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.