Home / 157,419.21-217,066.99-106,343.30

Finding the Fourth Proportional to 157,419.21, 217,066.99 and 106,343.30

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Solution

The fourth proportional to 157,419.21, 217,066.99 and 106,343.30 is: 146,637.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,419.21 : 217,066.99 = 106,343.30 : x
  2. Step 2: Convert to fraction form
    157,419.21/217,066.99 = 106,343.30/x
  3. Step 3: Cross multiply
    157,419.21x = 217,066.99 × 106,343.30
  4. Step 4: Simplify right side
    157,419.21x = 23,083,620,037.67
  5. Step 5: Solve for x
    x = 23,083,620,037.67/157,419.21
  6. Step 6: Final answer
    x = 146,637.89

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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.