Home / 138,455.44-191,068.50-74,793.24

Finding the Fourth Proportional to 138,455.44, 191,068.50 and 74,793.24

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Solution

The fourth proportional to 138,455.44, 191,068.50 and 74,793.24 is: 103,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,455.44 : 191,068.50 = 74,793.24 : x
  2. Step 2: Convert to fraction form
    138,455.44/191,068.50 = 74,793.24/x
  3. Step 3: Cross multiply
    138,455.44x = 191,068.50 × 74,793.24
  4. Step 4: Simplify right side
    138,455.44x = 14,290,632,457.41
  5. Step 5: Solve for x
    x = 14,290,632,457.41/138,455.44
  6. Step 6: Final answer
    x = 103,214.67

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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.