Home / 112,414.64-155,204.52-72,145.76

Finding the Fourth Proportional to 112,414.64, 155,204.52 and 72,145.76

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Solution

The fourth proportional to 112,414.64, 155,204.52 and 72,145.76 is: 99,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,414.64 : 155,204.52 = 72,145.76 : x
  2. Step 2: Convert to fraction form
    112,414.64/155,204.52 = 72,145.76/x
  3. Step 3: Cross multiply
    112,414.64x = 155,204.52 × 72,145.76
  4. Step 4: Simplify right side
    112,414.64x = 11,197,348,050.84
  5. Step 5: Solve for x
    x = 11,197,348,050.84/112,414.64
  6. Step 6: Final answer
    x = 99,607.56

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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.