Home / 157,015.41-216,597.15-109,185.72

Finding the Fourth Proportional to 157,015.41, 216,597.15 and 109,185.72

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Solution

The fourth proportional to 157,015.41, 216,597.15 and 109,185.72 is: 150,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,015.41 : 216,597.15 = 109,185.72 : x
  2. Step 2: Convert to fraction form
    157,015.41/216,597.15 = 109,185.72/x
  3. Step 3: Cross multiply
    157,015.41x = 216,597.15 × 109,185.72
  4. Step 4: Simplify right side
    157,015.41x = 23,649,315,772.70
  5. Step 5: Solve for x
    x = 23,649,315,772.70/157,015.41
  6. Step 6: Final answer
    x = 150,617.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.