Home / 135,851.10-187,465.50-75,418.80

Finding the Fourth Proportional to 135,851.10, 187,465.50 and 75,418.80

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Solution

The fourth proportional to 135,851.10, 187,465.50 and 75,418.80 is: 104,072.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,851.10 : 187,465.50 = 75,418.80 : x
  2. Step 2: Convert to fraction form
    135,851.10/187,465.50 = 75,418.80/x
  3. Step 3: Cross multiply
    135,851.10x = 187,465.50 × 75,418.80
  4. Step 4: Simplify right side
    135,851.10x = 14,138,423,051.40
  5. Step 5: Solve for x
    x = 14,138,423,051.40/135,851.10
  6. Step 6: Final answer
    x = 104,072.94

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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.