Home / 112,364.32-155,125.05-76,606.87

Finding the Fourth Proportional to 112,364.32, 155,125.05 and 76,606.87

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Solution

The fourth proportional to 112,364.32, 155,125.05 and 76,606.87 is: 105,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,364.32 : 155,125.05 = 76,606.87 : x
  2. Step 2: Convert to fraction form
    112,364.32/155,125.05 = 76,606.87/x
  3. Step 3: Cross multiply
    112,364.32x = 155,125.05 × 76,606.87
  4. Step 4: Simplify right side
    112,364.32x = 11,883,644,539.09
  5. Step 5: Solve for x
    x = 11,883,644,539.09/112,364.32
  6. Step 6: Final answer
    x = 105,759.95

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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.