Home / 112,882.10-155,777.74-61,895.64

Finding the Fourth Proportional to 112,882.10, 155,777.74 and 61,895.64

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Solution

The fourth proportional to 112,882.10, 155,777.74 and 61,895.64 is: 85,416.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,882.10 : 155,777.74 = 61,895.64 : x
  2. Step 2: Convert to fraction form
    112,882.10/155,777.74 = 61,895.64/x
  3. Step 3: Cross multiply
    112,882.10x = 155,777.74 × 61,895.64
  4. Step 4: Simplify right side
    112,882.10x = 9,641,962,915.05
  5. Step 5: Solve for x
    x = 9,641,962,915.05/112,882.10
  6. Step 6: Final answer
    x = 85,416.23

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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.