Home / 157,679.20-217,597.68-101,090.72

Finding the Fourth Proportional to 157,679.20, 217,597.68 and 101,090.72

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Solution

The fourth proportional to 157,679.20, 217,597.68 and 101,090.72 is: 139,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,679.20 : 217,597.68 = 101,090.72 : x
  2. Step 2: Convert to fraction form
    157,679.20/217,597.68 = 101,090.72/x
  3. Step 3: Cross multiply
    157,679.20x = 217,597.68 × 101,090.72
  4. Step 4: Simplify right side
    157,679.20x = 21,997,106,141.53
  5. Step 5: Solve for x
    x = 21,997,106,141.53/157,679.20
  6. Step 6: Final answer
    x = 139,505.44

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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.