Home / 159,077.10-219,527.88-87,457.63

Finding the Fourth Proportional to 159,077.10, 219,527.88 and 87,457.63

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Solution

The fourth proportional to 159,077.10, 219,527.88 and 87,457.63 is: 120,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,077.10 : 219,527.88 = 87,457.63 : x
  2. Step 2: Convert to fraction form
    159,077.10/219,527.88 = 87,457.63/x
  3. Step 3: Cross multiply
    159,077.10x = 219,527.88 × 87,457.63
  4. Step 4: Simplify right side
    159,077.10x = 19,199,386,568.80
  5. Step 5: Solve for x
    x = 19,199,386,568.80/159,077.10
  6. Step 6: Final answer
    x = 120,692.33

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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.