Home / 103,742.41-155,490.60-93,162.80

Finding the Fourth Proportional to 103,742.41, 155,490.60 and 93,162.80

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Solution

The fourth proportional to 103,742.41, 155,490.60 and 93,162.80 is: 139,633.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,742.41 : 155,490.60 = 93,162.80 : x
  2. Step 2: Convert to fraction form
    103,742.41/155,490.60 = 93,162.80/x
  3. Step 3: Cross multiply
    103,742.41x = 155,490.60 × 93,162.80
  4. Step 4: Simplify right side
    103,742.41x = 14,485,939,669.68
  5. Step 5: Solve for x
    x = 14,485,939,669.68/103,742.41
  6. Step 6: Final answer
    x = 139,633.73

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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.