Home / 131,620.30-197,430.45-103,626.70

Finding the Fourth Proportional to 131,620.30, 197,430.45 and 103,626.70

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Solution

The fourth proportional to 131,620.30, 197,430.45 and 103,626.70 is: 155,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,620.30 : 197,430.45 = 103,626.70 : x
  2. Step 2: Convert to fraction form
    131,620.30/197,430.45 = 103,626.70/x
  3. Step 3: Cross multiply
    131,620.30x = 197,430.45 × 103,626.70
  4. Step 4: Simplify right side
    131,620.30x = 20,459,066,013.02
  5. Step 5: Solve for x
    x = 20,459,066,013.02/131,620.30
  6. Step 6: Final answer
    x = 155,440.05

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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.