Home / 99,824.64-149,090.16-90,445.92

Finding the Fourth Proportional to 99,824.64, 149,090.16 and 90,445.92

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Solution

The fourth proportional to 99,824.64, 149,090.16 and 90,445.92 is: 135,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,824.64 : 149,090.16 = 90,445.92 : x
  2. Step 2: Convert to fraction form
    99,824.64/149,090.16 = 90,445.92/x
  3. Step 3: Cross multiply
    99,824.64x = 149,090.16 × 90,445.92
  4. Step 4: Simplify right side
    99,824.64x = 13,484,596,684.15
  5. Step 5: Solve for x
    x = 13,484,596,684.15/99,824.64
  6. Step 6: Final answer
    x = 135,082.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.