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Finding the Fourth Proportional to 123,009.60, 184,514.40 and 39,903.60

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Solution

The fourth proportional to 123,009.60, 184,514.40 and 39,903.60 is: 59,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,009.60 : 184,514.40 = 39,903.60 : x
  2. Step 2: Convert to fraction form
    123,009.60/184,514.40 = 39,903.60/x
  3. Step 3: Cross multiply
    123,009.60x = 184,514.40 × 39,903.60
  4. Step 4: Simplify right side
    123,009.60x = 7,362,788,811.84
  5. Step 5: Solve for x
    x = 7,362,788,811.84/123,009.60
  6. Step 6: Final answer
    x = 59,855.40

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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.