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Finding the Fourth Proportional to 112,203.83, 154,850.54 and 63,820.91

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Solution

The fourth proportional to 112,203.83, 154,850.54 and 63,820.91 is: 88,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,203.83 : 154,850.54 = 63,820.91 : x
  2. Step 2: Convert to fraction form
    112,203.83/154,850.54 = 63,820.91/x
  3. Step 3: Cross multiply
    112,203.83x = 154,850.54 × 63,820.91
  4. Step 4: Simplify right side
    112,203.83x = 9,882,702,444.81
  5. Step 5: Solve for x
    x = 9,882,702,444.81/112,203.83
  6. Step 6: Final answer
    x = 88,078.12

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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.