Home / 103,636.10-155,235.45-92,555.30

Finding the Fourth Proportional to 103,636.10, 155,235.45 and 92,555.30

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Solution

The fourth proportional to 103,636.10, 155,235.45 and 92,555.30 is: 138,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.10 : 155,235.45 = 92,555.30 : x
  2. Step 2: Convert to fraction form
    103,636.10/155,235.45 = 92,555.30/x
  3. Step 3: Cross multiply
    103,636.10x = 155,235.45 × 92,555.30
  4. Step 4: Simplify right side
    103,636.10x = 14,367,863,645.39
  5. Step 5: Solve for x
    x = 14,367,863,645.39/103,636.10
  6. Step 6: Final answer
    x = 138,637.63

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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.