Home / 123,400.20-184,841.10-67,931.40

Finding the Fourth Proportional to 123,400.20, 184,841.10 and 67,931.40

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Solution

The fourth proportional to 123,400.20, 184,841.10 and 67,931.40 is: 101,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,400.20 : 184,841.10 = 67,931.40 : x
  2. Step 2: Convert to fraction form
    123,400.20/184,841.10 = 67,931.40/x
  3. Step 3: Cross multiply
    123,400.20x = 184,841.10 × 67,931.40
  4. Step 4: Simplify right side
    123,400.20x = 12,556,514,700.54
  5. Step 5: Solve for x
    x = 12,556,514,700.54/123,400.20
  6. Step 6: Final answer
    x = 101,754.41

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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.