Home / 157,003.41-216,662.66-85,381.91

Finding the Fourth Proportional to 157,003.41, 216,662.66 and 85,381.91

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Solution

The fourth proportional to 157,003.41, 216,662.66 and 85,381.91 is: 117,825.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,003.41 : 216,662.66 = 85,381.91 : x
  2. Step 2: Convert to fraction form
    157,003.41/216,662.66 = 85,381.91/x
  3. Step 3: Cross multiply
    157,003.41x = 216,662.66 × 85,381.91
  4. Step 4: Simplify right side
    157,003.41x = 18,499,070,653.17
  5. Step 5: Solve for x
    x = 18,499,070,653.17/157,003.41
  6. Step 6: Final answer
    x = 117,825.92

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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.