Home / 157,236.96-216,962.58-90,156

Finding the Fourth Proportional to 157,236.96, 216,962.58 and 90,156

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Solution

The fourth proportional to 157,236.96, 216,962.58 and 90,156 is: 124,401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,236.96 : 216,962.58 = 90,156 : x
  2. Step 2: Convert to fraction form
    157,236.96/216,962.58 = 90,156/x
  3. Step 3: Cross multiply
    157,236.96x = 216,962.58 × 90,156
  4. Step 4: Simplify right side
    157,236.96x = 19,560,478,362.48
  5. Step 5: Solve for x
    x = 19,560,478,362.48/157,236.96
  6. Step 6: Final answer
    x = 124,401.28

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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.