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Finding the Fourth Proportional to 136,666.20, 204,999.30 and 124,200.30

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Solution

The fourth proportional to 136,666.20, 204,999.30 and 124,200.30 is: 186,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,666.20 : 204,999.30 = 124,200.30 : x
  2. Step 2: Convert to fraction form
    136,666.20/204,999.30 = 124,200.30/x
  3. Step 3: Cross multiply
    136,666.20x = 204,999.30 × 124,200.30
  4. Step 4: Simplify right side
    136,666.20x = 25,460,974,559.79
  5. Step 5: Solve for x
    x = 25,460,974,559.79/136,666.20
  6. Step 6: Final answer
    x = 186,300.45

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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.