Home / 157,424.60-236,720.10-131,763.80

Finding the Fourth Proportional to 157,424.60, 236,720.10 and 131,763.80

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Solution

The fourth proportional to 157,424.60, 236,720.10 and 131,763.80 is: 198,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,424.60 : 236,720.10 = 131,763.80 : x
  2. Step 2: Convert to fraction form
    157,424.60/236,720.10 = 131,763.80/x
  3. Step 3: Cross multiply
    157,424.60x = 236,720.10 × 131,763.80
  4. Step 4: Simplify right side
    157,424.60x = 31,191,139,912.38
  5. Step 5: Solve for x
    x = 31,191,139,912.38/157,424.60
  6. Step 6: Final answer
    x = 198,133.84

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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.