Home / 112,382.44-155,118.66-69,915.64

Finding the Fourth Proportional to 112,382.44, 155,118.66 and 69,915.64

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Solution

The fourth proportional to 112,382.44, 155,118.66 and 69,915.64 is: 96,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,382.44 : 155,118.66 = 69,915.64 : x
  2. Step 2: Convert to fraction form
    112,382.44/155,118.66 = 69,915.64/x
  3. Step 3: Cross multiply
    112,382.44x = 155,118.66 × 69,915.64
  4. Step 4: Simplify right side
    112,382.44x = 10,845,220,389.84
  5. Step 5: Solve for x
    x = 10,845,220,389.84/112,382.44
  6. Step 6: Final answer
    x = 96,502.80

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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.