Home / 119,370.18-178,709.67-89,912.10

Finding the Fourth Proportional to 119,370.18, 178,709.67 and 89,912.10

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Solution

The fourth proportional to 119,370.18, 178,709.67 and 89,912.10 is: 134,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,370.18 : 178,709.67 = 89,912.10 : x
  2. Step 2: Convert to fraction form
    119,370.18/178,709.67 = 89,912.10/x
  3. Step 3: Cross multiply
    119,370.18x = 178,709.67 × 89,912.10
  4. Step 4: Simplify right side
    119,370.18x = 16,068,161,720.01
  5. Step 5: Solve for x
    x = 16,068,161,720.01/119,370.18
  6. Step 6: Final answer
    x = 134,607.84

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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.