Home / 119,792.45-179,548.95-90,114.86

Finding the Fourth Proportional to 119,792.45, 179,548.95 and 90,114.86

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Solution

The fourth proportional to 119,792.45, 179,548.95 and 90,114.86 is: 135,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,792.45 : 179,548.95 = 90,114.86 : x
  2. Step 2: Convert to fraction form
    119,792.45/179,548.95 = 90,114.86/x
  3. Step 3: Cross multiply
    119,792.45x = 179,548.95 × 90,114.86
  4. Step 4: Simplify right side
    119,792.45x = 16,180,029,279.20
  5. Step 5: Solve for x
    x = 16,180,029,279.20/119,792.45
  6. Step 6: Final answer
    x = 135,067.18

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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.