Home / 99,742.12-149,416.36-74,810.32

Finding the Fourth Proportional to 99,742.12, 149,416.36 and 74,810.32

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Solution

The fourth proportional to 99,742.12, 149,416.36 and 74,810.32 is: 112,067.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,742.12 : 149,416.36 = 74,810.32 : x
  2. Step 2: Convert to fraction form
    99,742.12/149,416.36 = 74,810.32/x
  3. Step 3: Cross multiply
    99,742.12x = 149,416.36 × 74,810.32
  4. Step 4: Simplify right side
    99,742.12x = 11,177,885,704.84
  5. Step 5: Solve for x
    x = 11,177,885,704.84/99,742.12
  6. Step 6: Final answer
    x = 112,067.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.