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Finding the Fourth Proportional to 123,154.92, 184,693.50 and 53,015.40

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Solution

The fourth proportional to 123,154.92, 184,693.50 and 53,015.40 is: 79,506.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,154.92 : 184,693.50 = 53,015.40 : x
  2. Step 2: Convert to fraction form
    123,154.92/184,693.50 = 53,015.40/x
  3. Step 3: Cross multiply
    123,154.92x = 184,693.50 × 53,015.40
  4. Step 4: Simplify right side
    123,154.92x = 9,791,599,779.90
  5. Step 5: Solve for x
    x = 9,791,599,779.90/123,154.92
  6. Step 6: Final answer
    x = 79,506.36

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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.