Home / 131,632.30-197,448.45-103,638.70

Finding the Fourth Proportional to 131,632.30, 197,448.45 and 103,638.70

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Solution

The fourth proportional to 131,632.30, 197,448.45 and 103,638.70 is: 155,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,632.30 : 197,448.45 = 103,638.70 : x
  2. Step 2: Convert to fraction form
    131,632.30/197,448.45 = 103,638.70/x
  3. Step 3: Cross multiply
    131,632.30x = 197,448.45 × 103,638.70
  4. Step 4: Simplify right side
    131,632.30x = 20,463,300,675.02
  5. Step 5: Solve for x
    x = 20,463,300,675.02/131,632.30
  6. Step 6: Final answer
    x = 155,458.05

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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.