Home / 157,424.10-236,719.35-131,763.30

Finding the Fourth Proportional to 157,424.10, 236,719.35 and 131,763.30

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Solution

The fourth proportional to 157,424.10, 236,719.35 and 131,763.30 is: 198,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,424.10 : 236,719.35 = 131,763.30 : x
  2. Step 2: Convert to fraction form
    157,424.10/236,719.35 = 131,763.30/x
  3. Step 3: Cross multiply
    157,424.10x = 236,719.35 × 131,763.30
  4. Step 4: Simplify right side
    157,424.10x = 31,190,922,729.86
  5. Step 5: Solve for x
    x = 31,190,922,729.86/157,424.10
  6. Step 6: Final answer
    x = 198,133.09

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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.