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Finding the Fourth Proportional to 136,200.65, 204,300.98 and 66,216.65

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Solution

The fourth proportional to 136,200.65, 204,300.98 and 66,216.65 is: 99,324.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,200.65 : 204,300.98 = 66,216.65 : x
  2. Step 2: Convert to fraction form
    136,200.65/204,300.98 = 66,216.65/x
  3. Step 3: Cross multiply
    136,200.65x = 204,300.98 × 66,216.65
  4. Step 4: Simplify right side
    136,200.65x = 13,528,126,156.23
  5. Step 5: Solve for x
    x = 13,528,126,156.23/136,200.65
  6. Step 6: Final answer
    x = 99,324.98

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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.