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Finding the Fourth Proportional to 112,314, 154,866.96 and 91,832.16

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Solution

The fourth proportional to 112,314, 154,866.96 and 91,832.16 is: 126,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,314 : 154,866.96 = 91,832.16 : x
  2. Step 2: Convert to fraction form
    112,314/154,866.96 = 91,832.16/x
  3. Step 3: Cross multiply
    112,314x = 154,866.96 × 91,832.16
  4. Step 4: Simplify right side
    112,314x = 14,221,767,449.43
  5. Step 5: Solve for x
    x = 14,221,767,449.43/112,314
  6. Step 6: Final answer
    x = 126,625.06

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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.