Home / 123,011.10-184,400.55-66,768.30

Finding the Fourth Proportional to 123,011.10, 184,400.55 and 66,768.30

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Solution

The fourth proportional to 123,011.10, 184,400.55 and 66,768.30 is: 100,089.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,011.10 : 184,400.55 = 66,768.30 : x
  2. Step 2: Convert to fraction form
    123,011.10/184,400.55 = 66,768.30/x
  3. Step 3: Cross multiply
    123,011.10x = 184,400.55 × 66,768.30
  4. Step 4: Simplify right side
    123,011.10x = 12,312,111,242.57
  5. Step 5: Solve for x
    x = 12,312,111,242.57/123,011.10
  6. Step 6: Final answer
    x = 100,089.43

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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.