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Finding the Fourth Proportional to 145,810.80, 204,757.20 and 145,810.80

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Solution

The fourth proportional to 145,810.80, 204,757.20 and 145,810.80 is: 204,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,810.80 : 204,757.20 = 145,810.80 : x
  2. Step 2: Convert to fraction form
    145,810.80/204,757.20 = 145,810.80/x
  3. Step 3: Cross multiply
    145,810.80x = 204,757.20 × 145,810.80
  4. Step 4: Simplify right side
    145,810.80x = 29,855,811,137.76
  5. Step 5: Solve for x
    x = 29,855,811,137.76/145,810.80
  6. Step 6: Final answer
    x = 204,757.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.