Home / 145,114.71-199,900.80-123,534.89

Finding the Fourth Proportional to 145,114.71, 199,900.80 and 123,534.89

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Solution

The fourth proportional to 145,114.71, 199,900.80 and 123,534.89 is: 170,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,114.71 : 199,900.80 = 123,534.89 : x
  2. Step 2: Convert to fraction form
    145,114.71/199,900.80 = 123,534.89/x
  3. Step 3: Cross multiply
    145,114.71x = 199,900.80 × 123,534.89
  4. Step 4: Simplify right side
    145,114.71x = 24,694,722,339.41
  5. Step 5: Solve for x
    x = 24,694,722,339.41/145,114.71
  6. Step 6: Final answer
    x = 170,173.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.