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Finding the Fourth Proportional to 123,069.80, 184,604.70 and 103,386.80

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Solution

The fourth proportional to 123,069.80, 184,604.70 and 103,386.80 is: 155,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,069.80 : 184,604.70 = 103,386.80 : x
  2. Step 2: Convert to fraction form
    123,069.80/184,604.70 = 103,386.80/x
  3. Step 3: Cross multiply
    123,069.80x = 184,604.70 × 103,386.80
  4. Step 4: Simplify right side
    123,069.80x = 19,085,689,197.96
  5. Step 5: Solve for x
    x = 19,085,689,197.96/123,069.80
  6. Step 6: Final answer
    x = 155,080.20

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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.