Home / 112,364.82-155,125.74-76,607.37

Finding the Fourth Proportional to 112,364.82, 155,125.74 and 76,607.37

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Solution

The fourth proportional to 112,364.82, 155,125.74 and 76,607.37 is: 105,760.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,364.82 : 155,125.74 = 76,607.37 : x
  2. Step 2: Convert to fraction form
    112,364.82/155,125.74 = 76,607.37/x
  3. Step 3: Cross multiply
    112,364.82x = 155,125.74 × 76,607.37
  4. Step 4: Simplify right side
    112,364.82x = 11,883,774,960.70
  5. Step 5: Solve for x
    x = 11,883,774,960.70/112,364.82
  6. Step 6: Final answer
    x = 105,760.64

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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.