Home / 208,156.20-312,010.38-89,883.24

Finding the Fourth Proportional to 208,156.20, 312,010.38 and 89,883.24

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Solution

The fourth proportional to 208,156.20, 312,010.38 and 89,883.24 is: 134,728.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,156.20 : 312,010.38 = 89,883.24 : x
  2. Step 2: Convert to fraction form
    208,156.20/312,010.38 = 89,883.24/x
  3. Step 3: Cross multiply
    208,156.20x = 312,010.38 × 89,883.24
  4. Step 4: Simplify right side
    208,156.20x = 28,044,503,868.03
  5. Step 5: Solve for x
    x = 28,044,503,868.03/208,156.20
  6. Step 6: Final answer
    x = 134,728.17

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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.