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Finding the Fourth Proportional to 123,000.90, 184,501.35 and 111,920.10

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Solution

The fourth proportional to 123,000.90, 184,501.35 and 111,920.10 is: 167,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,000.90 : 184,501.35 = 111,920.10 : x
  2. Step 2: Convert to fraction form
    123,000.90/184,501.35 = 111,920.10/x
  3. Step 3: Cross multiply
    123,000.90x = 184,501.35 × 111,920.10
  4. Step 4: Simplify right side
    123,000.90x = 20,649,409,542.14
  5. Step 5: Solve for x
    x = 20,649,409,542.14/123,000.90
  6. Step 6: Final answer
    x = 167,880.15

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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.