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Finding the Fourth Proportional to 123,341.40, 184,817.70 and 103,512.60

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Solution

The fourth proportional to 123,341.40, 184,817.70 and 103,512.60 is: 155,105.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,341.40 : 184,817.70 = 103,512.60 : x
  2. Step 2: Convert to fraction form
    123,341.40/184,817.70 = 103,512.60/x
  3. Step 3: Cross multiply
    123,341.40x = 184,817.70 × 103,512.60
  4. Step 4: Simplify right side
    123,341.40x = 19,130,960,653.02
  5. Step 5: Solve for x
    x = 19,130,960,653.02/123,341.40
  6. Step 6: Final answer
    x = 155,105.75

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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.